# install yum repo package
rpm -Uvh http://www.city-fan.org/ftp/contrib/yum-repo/city-fan.org-release-1-7.rhel5.noarch.rpm
 
# import repo's GPG Key
rpm --import http://www.city-fan.org/ftp/contrib/yum-repo/CITY-FAN.ORG-GPG-KEY
 
# perform an initial update
yum update

# install yum repo package
rpm -Uvh http://dag.wieers.com/rpm/packages/rpmforge-release/rpmforge-release-0.3.6-1.el5.rf.i386.rpm
 
# import repo's GPG Key
rpm --import http://dag.wieers.com/rpm/packages/RPM-GPG-KEY.dag.txt
 
# perform an initial update
yum update

yum install spamassassin \
 spamass-milter

# Options to spamd
SPAMDOPTIONS="-d -c -m5 -H"

### Override for your different local config
#SOCKET=/var/run/spamass-milter/spamass-milter.sock
 
### Standard parameters for spamass-milter are:
### -P /var/run/spamass-milter.pid (PID file)
###
### Note that the -f parameter for running the milter in the background
### is not required because the milter runs in a wrapper script that
### backgrounds itself
###
### You may add another parameters here, see spamass-milter(1)
#EXTRA_FLAGS="-m -r 15"

dnl **
dnl ** enable spamassassin-milter to scan for spam using spamassassin **
dnl **
INPUT_MAIL_FILTER(`spamassassin', `S=unix:/var/run/spamass-milter/spamass-milter.sock, F=, T=C:15m;S:4m;R:4m;E:10m')dnl
define(`confMILTER_MACROS_CONNECT',`t, b, j, _, {daemon_name}, {if_name}, {if_addr}')dnl
define(`confMILTER_MACROS_HELO',`s, {tls_version}, {cipher}, {cipher_bits}, {cert_subject}, {cert_issuer}')dnl

# install perl-Mail-SPF
yum install perl-Mail-SPF
 
# restart spamassassin (in order to detect the spf plugin)
/etc/init.d/spamassassin restart

spamassassin -D <  /usr/share/doc/spamassassin-3.2.5/sample-spam.txt 2>&1 |grep -i spf
[18108] dbg: config: read file /usr/share/spamassassin/25_spf.cf
[18108] dbg: config: read file /usr/share/spamassassin/60_whitelist_spf.cf
[18108] dbg: plugin: loading Mail::SpamAssassin::Plugin::SPF from @INC
[18108] dbg: spf: checking to see if the message has a Received-SPF header that we can use
[18108] dbg: spf: using Mail::SPF for SPF checks
[18108] dbg: spf: no suitable relay for spf use found, skipping SPF-helo check
[18108] dbg: spf: already checked for Received-SPF headers, proceeding with DNS based checks
[18108] dbg: spf: no suitable relay for spf use found, skipping SPF check
[18108] dbg: spf: def_spf_whitelist_from: already checked spf and didn't get pass, skipping whitelist check
[18108] dbg: spf: whitelist_from_spf: already checked spf and didn't get pass, skipping whitelist check

yum install perl-Mail-DKIM

spamassassin -D < ~/sam2.txt 2>&1 |grep -i dk
[18334] dbg: config: read file /usr/share/spamassassin/25_dkim.cf
[18334] dbg: config: read file /usr/share/spamassassin/60_whitelist_dk.cf
[18334] dbg: config: read file /usr/share/spamassassin/60_whitelist_dkim.cf
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
       	bh=8PW6kvDkcUGo7mGimEUrTlMVS5Y1dFw/IjjLn1WnNLw=;

yum install GeoIP

wget http://www.mailscanner.info/files/greylist/milter-greylist-4.0-4.jkf.el5.i386.rpm
yum --nogpgcheck install milter-greylist-4.0-4.jkf.el5.i386.rpm

yum install clamav \
 clamav-db \
 clamav-milter \
 clamd

### Simple config file for clamav-milter, you should
### read the documentation and tweak it as you wish.
 
CLAMAV_FLAGS="--config-file=/etc/clamav-milter.conf"

##
## Example config file for clamav-milter
##
 
# Comment or remove the line below.
#Example
 
 
##
## Main options
##
 
# Define the interface through which we communicate with sendmail
# This option is mandatory! Possible formats are:
# [[unix|local]:]/path/to/file - to specify a unix domain socket
# inet:port@[hostname|ip-address] - to specify an ipv4 socket
# inet6:port@[hostname|ip-address] - to specify an ipv6 socket
#
# Default: no default
MilterSocket unix:/var/clamav/clmilter.socket
#MilterSocket inet:7357
 
# Remove stale socket after unclean shutdown.
#
# Default: yes
#FixStaleSocket yes
 
# Run as another user (clamav-milter must be started by root for this option to work)
#
# Default: unset (don't drop privileges)
User clamav
 
# Initialize supplementary group access (clamav-milter must be started by root).
#
# Default: no
AllowSupplementaryGroups yes
 
# Waiting for data from clamd will timeout after this time (seconds).
# Value of 0 disables the timeout.
#
# Default: 120
#ReadTimeout 300
 
# Don't fork into background.
#
# Default: no
#Foreground yes
 
# Chroot to the specified directory.
# Chrooting is performed just after reading the config file and before dropping privileges.
#
# Default: unset (don't chroot)
#Chroot /newroot
 
# This option allows you to save a process identifier of the listening
# daemon (main thread).
#
# Default: disabled
#PidFile /var/run/clamav-milter.pid
 
# Optional path to the global temporary directory.
# Default: system specific (usually /tmp or /var/tmp).
#
#TemporaryDirectory /var/tmp
 
##
## Clamd options
##
 
# Define the clamd socket to connect to for scanning.
# This option is mandatory! Syntax:
# ClamdSocket unix:path
# ClamdSocket tcp:host:port
# The first syntax specifies a local unix socket (needs an absolute path) e.g.:
#     ClamdSocket unix:/var/run/clamd/clamd.socket
# The second syntax specifies a tcp local or remote tcp socket: the
# host can be a hostname or an ip address; the ":port" field is only required
# for IPv6 addresses, otherwise it defaults to 3310
#     ClamdSocket tcp:192.168.0.1
#
# This option can be repeated several times with different sockets or even
# with the same socket: clamd servers will be selected in a round-robin fashion.
#
# Default: no default
ClamdSocket unix:/var/run/clamav/clamd.sock
 
 
##
## Exclusions
##
 
# Messages originating from these hosts/networks will not be scanned
# This option takes a host(name)/mask pair in CIRD notation and can be
# repeated several times. If "/mask" is omitted, a host is assumed.
# To specify a locally orignated, non-smtp, email use the keyword "local"
#
# Default: unset (scan everything regardless of the origin)
#LocalNet local
#LocalNet 192.168.0.0/24
#LocalNet 1111:2222:3333::/48
 
# This option specifies a file which contains a list of basic POSIX regular
# expressions. Addresses (sent to or from - see below) matching these regexes
# will not be scanned.  Optionally each line can start with the string "From:"
# or "To:" (note: no whitespace after the colon) indicating if it is, 
# respectively, the sender or recipient that is to be whitelisted.
# If the field is missing, "To:" is assumed.
# Lines starting with #, : or ! are ignored.
#
# Default unset (no exclusion applied)
#Whitelist /etc/whitelisted_addresses
 
# Messages from authenticated SMTP users matching this extended POSIX
# regular expression (egrep-like) will not be scanned.
# Note: this is the AUTH login name!
#
# Default: unset (no whitelisting based on SMTP auth)
#SkipAuthenticated ^(tom|dick|henry)$
 
 
##
## Actions
##
 
# The following group of options controls the delievery process under
# different circumstances.
# The following actions are available:
# - Accept
#   The message is accepted for delievery
# - Reject
#   Immediately refuse delievery (a 5xx error is returned to the peer)
# - Defer
#   Return a temporary failure message (4xx) to the peer
# - Blackhole (not available for OnFail)
#   Like accept but the message is sent to oblivion
# - Quarantine (not available for OnFail)
#   Like accept but message is quarantined instead of being delivered
#   In sendmail the quarantine queue can be examined via mailq -qQ
#   For Postfix this causes the message to be accepted but placed on hold
# 
# Action to be performed on clean messages (mostly useful for testing)
# Default Accept
#OnClean Accept
 
# Action to be performed on infected messages
# Default: Quarantine
#OnInfected Quarantine
 
# Action to be performed on error conditions (this includes failure to
# allocate data structures, no scanners available, network timeouts,
# unknown scanner replies and the like)
# Default Defer
#OnFail Defer
 
# This option allows to set a specific rejection reason for infected messages
# and it's therefore only useful together with "OnInfected Reject"
# The string "%v", if present, will be replaced with the virus name.
# Default: MTA specific
#RejectMsg 
 
# If this option is set to Yes, an "X-Virus-Scanned" and an "X-Virus-Status"
# headers will be attached to each processed message, possibly replacing
# existing headers. 
# Default: No
#AddHeader Yes
 
 
##
## Logging options
##
 
# Uncomment this option to enable logging.
# LogFile must be writable for the user running daemon.
# A full path is required.
#
# Default: disabled
LogFile /var/log/clamav/clamav-milter.log
 
# By default the log file is locked for writing - the lock protects against
# running clamav-milter multiple times.
# This option disables log file locking.
#
# Default: no
#LogFileUnlock yes
 
# Maximum size of the log file.
# Value of 0 disables the limit.
# You may use 'M' or 'm' for megabytes (1M = 1m = 1048576 bytes)
# and 'K' or 'k' for kilobytes (1K = 1k = 1024 bytes). To specify the size
# in bytes just don't use modifiers.
#
# Default: 1M
LogFileMaxSize 0
 
# Log time with each message.
#
# Default: no
LogTime yes
 
# Use system logger (can work together with LogFile).
#
# Default: no
LogSyslog yes
 
# Specify the type of syslog messages - please refer to 'man syslog'
# for facility names.
#
# Default: LOG_LOCAL6
#LogFacility LOG_MAIL
 
# Enable verbose logging.
#
# Default: no
#LogVerbose yes
 
# This option allows to tune what is logged when a message is infected.
# Possible values are Off (the default - nothing is logged),
# Basic (minimal info logged), Full (verbose info logged)
#
# Default: disabled
#LogInfected Basic
 
 
##
## Limits
##
 
# Messages larger than this value won't be scanned.
# Make sure this value is lower or equal than StreamMaxLength in clamd.conf
#
# Default: 25M
#MaxFileSize 10M

##
## Example config file for the Clam AV daemon
## Please read the clamd.conf(5) manual before editing this file.
##
 
 
# Comment or remove the line below.
#Example
 
# Uncomment this option to enable logging.
# LogFile must be writable for the user running daemon.
# A full path is required.
# Default: disabled
LogFile /var/log/clamav/clamd.log
 
# By default the log file is locked for writing - the lock protects against
# running clamd multiple times (if want to run another clamd, please
# copy the configuration file, change the LogFile variable, and run
# the daemon with --config-file option).
# This option disables log file locking.
# Default: no
#LogFileUnlock yes
 
# Maximum size of the log file.
# Value of 0 disables the limit.
# You may use 'M' or 'm' for megabytes (1M = 1m = 1048576 bytes)
# and 'K' or 'k' for kilobytes (1K = 1k = 1024 bytes). To specify the size
# in bytes just don't use modifiers.
# Default: 1M
LogFileMaxSize 0
 
# Log time with each message.
# Default: no
LogTime yes
 
# Also log clean files. Useful in debugging but drastically increases the
# log size.
# Default: no
#LogClean yes
 
# Use system logger (can work together with LogFile).
# Default: no
LogSyslog yes
 
# Specify the type of syslog messages - please refer to 'man syslog'
# for facility names.
# Default: LOG_LOCAL6
#LogFacility LOG_MAIL
 
# Enable verbose logging.
# Default: no
#LogVerbose yes
 
# This option allows you to save a process identifier of the listening
# daemon (main thread).
# Default: disabled
PidFile /var/run/clamav/clamd.pid
 
# Optional path to the global temporary directory.
# Default: system specific (usually /tmp or /var/tmp).
TemporaryDirectory /var/tmp
 
# Path to the database directory.
# Default: hardcoded (depends on installation options)
DatabaseDirectory /var/clamav
 
# The daemon can work in local mode, network mode or both. 
# Due to security reasons we recommend the local mode.
 
# Path to a local socket file the daemon will listen on.
# Default: disabled (must be specified by a user)
LocalSocket /var/run/clamav/clamd.sock
 
# Remove stale socket after unclean shutdown.
# Default: yes
FixStaleSocket yes
 
# TCP port address.
# Default: no
TCPSocket 3310
 
# TCP address.
# By default we bind to INADDR_ANY, probably not wise.
# Enable the following to provide some degree of protection
# from the outside world.
# Default: no
TCPAddr 127.0.0.1
 
# Maximum length the queue of pending connections may grow to.
# Default: 15
MaxConnectionQueueLength 30
 
# Clamd uses FTP-like protocol to receive data from remote clients.
# If you are using clamav-milter to balance load between remote clamd daemons
# on firewall servers you may need to tune the options below.
 
# Close the connection when the data size limit is exceeded.
# The value should match your MTA's limit for a maximum attachment size.
# Default: 25M
#StreamMaxLength 10M
 
# Limit port range.
# Default: 1024
#StreamMinPort 30000
# Default: 2048
#StreamMaxPort 32000
 
# Maximum number of threads running at the same time.
# Default: 10
MaxThreads 50
 
# Waiting for data from a client socket will timeout after this time (seconds).
# Value of 0 disables the timeout.
# Default: 120
ReadTimeout 300
 
# This option specifies the time (in seconds) after which clamd should
# timeout if a client doesn't provide any initial command after connecting.
# Default: 5
#CommandReadTimeout 5
 
# This option specifies how long to wait (in miliseconds) if the send buffer is full.
# Keep this value low to prevent clamd hanging
#
# Default: 500
#SendBufTimeout 200
 
# Maximum number of queued items (including those being processed by MaxThreads threads)
# It is recommended to have this value at least twice MaxThreads if possible.
# WARNING: you shouldn't increase this too much to avoid running out  of file descriptors,
# the following condition should hold:
# MaxThreads*MaxRecursion + (MaxQueue - MaxThreads) + 6< RLIMIT_NOFILE (usual max is 1024)
#
# Default: 100
#MaxQueue 200
 
# Waiting for a new job will timeout after this time (seconds).
# Default: 30
#IdleTimeout 60
 
# Don't scan files and directories matching regex
# This directive can be used multiple times
# Default: scan all
#ExcludePath ^/proc/
#ExcludePath ^/sys/
 
# Maximum depth directories are scanned at.
# Default: 15
#MaxDirectoryRecursion 20
 
# Follow directory symlinks.
# Default: no
#FollowDirectorySymlinks yes
 
# Follow regular file symlinks.
# Default: no
#FollowFileSymlinks yes
 
# Perform a database check.
# Default: 600 (10 min)
#SelfCheck 600
 
# Execute a command when virus is found. In the command string %v will
# be replaced with the virus name.
# Default: no
#VirusEvent /usr/local/bin/send_sms 123456789 "VIRUS ALERT: %v"
 
# Run as another user (clamd must be started by root for this option to work)
# Default: don't drop privileges
User clamav
 
# Initialize supplementary group access (clamd must be started by root).
# Default: no
AllowSupplementaryGroups yes
 
# Stop daemon when libclamav reports out of memory condition.
#ExitOnOOM yes
 
# Don't fork into background.
# Default: no
#Foreground yes
 
# Enable debug messages in libclamav.
# Default: no
#Debug yes
 
# Do not remove temporary files (for debug purposes).
# Default: no
#LeaveTemporaryFiles yes
 
# Detect Possibly Unwanted Applications.
# Default: no
#DetectPUA yes
 
# Exclude a specific PUA category. This directive can be used multiple times.
# See http://www.clamav.net/support/pua for the complete list of PUA
# categories.
# Default: Load all categories (if DetectPUA is activated)
#ExcludePUA NetTool
#ExcludePUA PWTool
 
# Only include a specific PUA category. This directive can be used multiple
# times.
# Default: Load all categories (if DetectPUA is activated)
#IncludePUA Spy
#IncludePUA Scanner
#IncludePUA RAT
 
# In some cases (eg. complex malware, exploits in graphic files, and others),
# ClamAV uses special algorithms to provide accurate detection. This option
# controls the algorithmic detection.
# Default: yes
#AlgorithmicDetection yes
 
 
##
## Executable files
##
 
# PE stands for Portable Executable - it's an executable file format used
# in all 32 and 64-bit versions of Windows operating systems. This option allows
# ClamAV to perform a deeper analysis of executable files and it's also
# required for decompression of popular executable packers such as UPX, FSG,
# and Petite.
# Default: yes
ScanPE yes
 
# Executable and Linking Format is a standard format for UN*X executables.
# This option allows you to control the scanning of ELF files.
# Default: yes
ScanELF yes
 
# With this option clamav will try to detect broken executables (both PE and
# ELF) and mark them as Broken.Executable.
# Default: no
DetectBrokenExecutables yes
 
 
##
## Documents
##
 
# This option enables scanning of OLE2 files, such as Microsoft Office
# documents and .msi files.
# Default: yes
ScanOLE2 yes
 
# This option enables scanning within PDF files.
# Default: yes
#ScanPDF yes
 
 
##
## Mail files
##
 
# Enable internal e-mail scanner.
# Default: yes
ScanMail yes
 
# If an email contains URLs ClamAV can download and scan them.
# WARNING: This option may open your system to a DoS attack.
#	   Never use it on loaded servers.
# Default: no
#MailFollowURLs no
 
# Scan RFC1341 messages split over many emails.
# You will need to periodically clean up $TemporaryDirectory/clamav-partial directory.
# WARNING: This option may open your system to a DoS attack.
#	   Never use it on loaded servers.
# Default: no
#ScanPartialMessages yes
 
 
# With this option enabled ClamAV will try to detect phishing attempts by using
# signatures.
# Default: yes
#PhishingSignatures yes
 
# Scan URLs found in mails for phishing attempts using heuristics.
# Default: yes
#PhishingScanURLs yes
 
# Always block SSL mismatches in URLs, even if the URL isn't in the database.
# This can lead to false positives.
#
# Default: no
#PhishingAlwaysBlockSSLMismatch no
 
# Always block cloaked URLs, even if URL isn't in database.
# This can lead to false positives.
#
# Default: no
#PhishingAlwaysBlockCloak no
 
# Allow heuristic match to take precedence.
# When enabled, if a heuristic scan (such as phishingScan) detects
# a possible virus/phish it will stop scan immediately. Recommended, saves CPU
# scan-time.
# When disabled, virus/phish detected by heuristic scans will be reported only at
# the end of a scan. If an archive contains both a heuristically detected
# virus/phish, and a real malware, the real malware will be reported
#
# Keep this disabled if you intend to handle "*.Heuristics.*" viruses 
# differently from "real" malware.
# If a non-heuristically-detected virus (signature-based) is found first, 
# the scan is interrupted immediately, regardless of this config option.
#
# Default: no
#HeuristicScanPrecedence yes
 
##
## Data Loss Prevention (DLP)
##
 
# Enable the DLP module
# Default: No
#StructuredDataDetection yes
 
# This option sets the lowest number of Credit Card numbers found in a file
# to generate a detect.
# Default: 3
#StructuredMinCreditCardCount 5
 
# This option sets the lowest number of Social Security Numbers found
# in a file to generate a detect.
# Default: 3
#StructuredMinSSNCount 5
 
# With this option enabled the DLP module will search for valid
# SSNs formatted as xxx-yy-zzzz
# Default: yes
#StructuredSSNFormatNormal yes
 
# With this option enabled the DLP module will search for valid
# SSNs formatted as xxxyyzzzz
# Default: no
#StructuredSSNFormatStripped yes
 
 
##
## HTML
##
 
# Perform HTML normalisation and decryption of MS Script Encoder code.
# Default: yes
#ScanHTML yes
 
 
##
## Archives
##
 
# ClamAV can scan within archives and compressed files.
# Default: yes
ScanArchive yes
 
# Mark encrypted archives as viruses (Encrypted.Zip, Encrypted.RAR).
# Default: no
ArchiveBlockEncrypted no
 
 
##
## Limits
##
 
# The options below protect your system against Denial of Service attacks
# using archive bombs.
 
# This option sets the maximum amount of data to be scanned for each input file.
# Archives and other containers are recursively extracted and scanned up to this
# value.
# Value of 0 disables the limit
# Note: disabling this limit or setting it too high may result in severe damage
# to the system.
# Default: 100M
#MaxScanSize 150M
 
# Files larger than this limit won't be scanned. Affects the input file itself
# as well as files contained inside it (when the input file is an archive, a
# document or some other kind of container).
# Value of 0 disables the limit.
# Note: disabling this limit or setting it too high may result in severe damage
# to the system.
# Default: 25M
#MaxFileSize 30M
 
# Nested archives are scanned recursively, e.g. if a Zip archive contains a RAR
# file, all files within it will also be scanned. This options specifies how
# deeply the process should be continued.
# Note: disabling this limit or setting it too high may result in severe damage
# to the system.
# Value of 0 disables the limit.
# Default: 16
#MaxRecursion 10
 
# Number of files to be scanned within an archive, a document, or any other
# container file.
# Value of 0 disables the limit.
# Note: disabling this limit or setting it too high may result in severe damage
# to the system.
# Default: 10000
#MaxFiles 15000
 
 
##
## Clamuko settings
## WARNING: This is experimental software. It is very likely it will hang
##	    up your system!!!
##
 
# Enable Clamuko. Dazuko (/dev/dazuko) must be configured and running.
# Default: no
#ClamukoScanOnAccess yes
 
# Set access mask for Clamuko.
# Default: no
#ClamukoScanOnOpen yes
#ClamukoScanOnClose yes
#ClamukoScanOnExec yes
 
# Set the include paths (all files inside them will be scanned). You can have
# multiple ClamukoIncludePath directives but each directory must be added
# in a seperate line.
# Default: disabled
#ClamukoIncludePath /home
#ClamukoIncludePath /students
 
# Set the exclude paths. All subdirectories are also excluded.
# Default: disabled
#ClamukoExcludePath /home/bofh
 
# Don't scan files larger than ClamukoMaxFileSize
# Value of 0 disables the limit.
# Default: 5M
#ClamukoMaxFileSize 10M

yum install dovecot

## Dovecot configuration file
 
# If you're in a hurry, see http://wiki.dovecot.org/QuickConfiguration
 
# "dovecot -n" command gives a clean output of the changed settings. Use it
# instead of copy&pasting this file when posting to the Dovecot mailing list.
 
# '#' character and everything after it is treated as comments. Extra spaces
# and tabs are ignored. If you want to use either of these explicitly, put the
# value inside quotes, eg.: key = "# char and trailing whitespace  "
 
# Default values are shown for each setting, it's not required to uncomment
# any of the lines.
 
# Base directory where to store runtime data.
#base_dir = /var/run/dovecot/
 
# Protocols we want to be serving: imap imaps pop3 pop3s managesieve
# If you only want to use dovecot-auth, you can set this to "none".
#protocols = imap imaps pop3 pop3s
protocols = imap imaps pop3 pop3s
 
# A space separated list of IP or host addresses where to listen in for
# connections. "*" listens in all IPv4 interfaces. "[::]" listens in all IPv6
# interfaces. Use "*, [::]" for listening both IPv4 and IPv6.
#
# If you want to specify ports for each service, you will need to configure
# these settings inside the protocol imap/pop3/managesieve { ... } section, 
# so you can specify different ports for IMAP/POP3/MANAGESIEVE. For example:
#   protocol imap {
#     listen = *:10143
#     ssl_listen = *:10943
#     ..
#   }
#   protocol pop3 {
#     listen = *:10100
#     ..
#   }
#   protocol managesieve {
#     listen = *:12000
#     ..
#   }
#listen = *, [::]
 
# Disable LOGIN command and all other plaintext authentications unless
# SSL/TLS is used (LOGINDISABLED capability). Note that if the remote IP
# matches the local IP (ie. you're connecting from the same computer), the
# connection is considered secure and plaintext authentication is allowed.
#disable_plaintext_auth = no
 
# Should all IMAP and POP3 processes be killed when Dovecot master process
# shuts down. Setting this to "no" means that Dovecot can be upgraded without
# forcing existing client connections to close (although that could also be
# a problem if the upgrade is eg. because of a security fix). This however
# means that after master process has died, the client processes can't write
# to log files anymore.
#shutdown_clients = yes
 
##
## Logging
##
 
# Log file to use for error messages, instead of sending them to syslog.
# /dev/stderr can be used to log into stderr.
#log_path = 
 
# Log file to use for informational and debug messages.
# Default is the same as log_path.
#info_log_path = 
 
# Prefix for each line written to log file. % codes are in strftime(3)
# format.
#log_timestamp = "%b %d %H:%M:%S "
 
# Syslog facility to use if you're logging to syslog. Usually if you don't
# want to use "mail", you'll use local0..local7. Also other standard
# facilities are supported.
#syslog_facility = mail
 
##
## SSL settings
##
 
# IP or host address where to listen in for SSL connections. Remember to also
# add imaps and/or pop3s to protocols setting. Defaults to same as "listen"
# setting if not specified.
#ssl_listen =
 
# SSL/TLS support: yes, no, required. <doc/wiki/SSL>
#ssl = yes
 
# PEM encoded X.509 SSL/TLS certificate and private key. They're opened before
# dropping root privileges, so keep the key file unreadable by anyone but
# root. Included doc/mkcert.sh can be used to easily generate self-signed
# certificate, just make sure to update the domains in dovecot-openssl.cnf
ssl_cert_file = /etc/pki/dovecot/certs/dovecot.pem
ssl_key_file = /etc/pki/dovecot/private/dovecot.pem
 
# If key file is password protected, give the password here. Alternatively
# give it when starting dovecot with -p parameter. Since this file is often
# world-readable, you may want to place this setting instead to a different
# root owned 0600 file by using !include_try <path>.
#ssl_key_password =
 
# File containing trusted SSL certificate authorities. Set this only if you
# intend to use ssl_verify_client_cert=yes. The CAfile should contain the
# CA-certificate(s) followed by the matching CRL(s).
#ssl_ca_file = 
 
# Request client to send a certificate. If you also want to require it, set
# ssl_require_client_cert=yes in auth section.
#ssl_verify_client_cert = no
 
# Which field from certificate to use for username. commonName and
# x500UniqueIdentifier are the usual choices. You'll also need to set
# ssl_username_from_cert=yes.
#ssl_cert_username_field = commonName
 
# How often to regenerate the SSL parameters file. Generation is quite CPU
# intensive operation. The value is in hours, 0 disables regeneration
# entirely.
#ssl_parameters_regenerate = 168
 
# SSL ciphers to use
#ssl_cipher_list = ALL:!LOW:!SSLv2
 
# Show protocol level SSL errors.
#verbose_ssl = no
 
##
## Login processes
##
 
# <doc/wiki/LoginProcess.txt>
 
# Directory where authentication process places authentication UNIX sockets
# which login needs to be able to connect to. The sockets are created when
# running as root, so you don't have to worry about permissions. Note that
# everything in this directory is deleted when Dovecot is started.
#login_dir = /var/run/dovecot/login
 
# chroot login process to the login_dir. Only reason not to do this is if you
# wish to run the whole Dovecot without roots. <doc/wiki/Rootless.txt>
#login_chroot = yes
 
# User to use for the login process. Create a completely new user for this,
# and don't use it anywhere else. The user must also belong to a group where
# only it has access, it's used to control access for authentication process.
# Note that this user is NOT used to access mails. <doc/wiki/UserIds.txt>
#login_user = dovecot
 
# Set max. process size in megabytes. If you don't use
# login_process_per_connection you might need to grow this.
#login_process_size = 64
 
# Should each login be processed in it's own process (yes), or should one
# login process be allowed to process multiple connections (no)? Yes is more
# secure, espcially with SSL/TLS enabled. No is faster since there's no need
# to create processes all the time.
#login_process_per_connection = yes
 
# Number of login processes to keep for listening new connections.
#login_processes_count = 3
 
# Maximum number of login processes to create. The listening process count
# usually stays at login_processes_count, but when multiple users start logging
# in at the same time more extra processes are created. To prevent fork-bombing
# we check only once in a second if new processes should be created - if all
# of them are used at the time, we double their amount until the limit set by
# this setting is reached.
#login_max_processes_count = 128
 
# Maximum number of connections allowed per each login process. This setting
# is used only if login_process_per_connection=no. Once the limit is reached,
# the process notifies master so that it can create a new login process.
#login_max_connections = 256
 
# Greeting message for clients.
#login_greeting = Dovecot ready.
 
# Space separated list of trusted network ranges. Connections from these
# IPs are allowed to override their IP addresses and ports (for logging and
# for authentication checks). disable_plaintext_auth is also ignored for
# these networks. Typically you'd specify your IMAP proxy servers here.
#login_trusted_networks =
 
# Space-separated list of elements we want to log. The elements which have
# a non-empty variable value are joined together to form a comma-separated
# string.
#login_log_format_elements = user=<%u> method=%m rip=%r lip=%l %c
 
# Login log format. %$ contains login_log_format_elements string, %s contains
# the data we want to log.
#login_log_format = %$: %s
 
##
## Mailbox locations and namespaces
##
 
# Location for users' mailboxes. This is the same as the old default_mail_env
# setting. The default is empty, which means that Dovecot tries to find the
# mailboxes automatically. This won't work if the user doesn't have any mail
# yet, so you should explicitly tell Dovecot the full location.
#
# If you're using mbox, giving a path to the INBOX file (eg. /var/mail/%u)
# isn't enough. You'll also need to tell Dovecot where the other mailboxes are
# kept. This is called the "root mail directory", and it must be the first
# path given in the mail_location setting.
#
# There are a few special variables you can use, eg.:
#
#   %u - username
#   %n - user part in user@domain, same as %u if there's no domain
#   %d - domain part in user@domain, empty if there's no domain
#   %h - home directory
#
# See doc/wiki/Variables.txt for full list. Some examples:
#
#   mail_location = maildir:~/Maildir
#   mail_location = mbox:~/mail:INBOX=/var/mail/%u
#   mail_location = mbox:/var/mail/%d/%1n/%n:INDEX=/var/indexes/%d/%1n/%n
#
# <doc/wiki/MailLocation.txt>
#
#mail_location =
mail_location = mbox:~/Mail:INBOX=/home/%u/Mail/INBOX
 
# If you need to set multiple mailbox locations or want to change default
# namespace settings, you can do it by defining namespace sections.
#
# You can have private, shared and public namespaces. Private namespaces
# are for user's personal mails. Shared namespaces are for accessing other
# users' mailboxes that have been shared. Public namespaces are for shared
# mailboxes that are managed by sysadmin. If you create any shared or public
# namespaces you'll typically want to enable ACL plugin also, otherwise all
# users can access all the shared mailboxes, assuming they have permissions
# on filesystem level to do so.
#
# REMEMBER: If you add any namespaces, the default namespace must be added
# explicitly, ie. mail_location does nothing unless you have a namespace
# without a location setting. Default namespace is simply done by having a
# namespace with empty prefix.
#namespace private {
   # Hierarchy separator to use. You should use the same separator for all
   # namespaces or some clients get confused. '/' is usually a good one.
   # The default however depends on the underlying mail storage format.
   #separator = 
 
   # Prefix required to access this namespace. This needs to be different for
   # all namespaces. For example "Public/".
   #prefix = 
 
   # Physical location of the mailbox. This is in same format as
   # mail_location, which is also the default for it.
   #location =
 
   # There can be only one INBOX, and this setting defines which namespace
   # has it.
   #inbox = no
 
   # If namespace is hidden, it's not advertised to clients via NAMESPACE
   # extension. You'll most likely also want to set list=no. This is mostly
   # useful when converting from another server with different namespaces which
   # you want to deprecate but still keep working. For example you can create
   # hidden namespaces with prefixes "~/mail/", "~%u/mail/" and "mail/".
   #hidden = yes
 
   # Show the mailboxes under this namespace with LIST command. This makes the
   # namespace visible for clients that don't support NAMESPACE extension.
   # "children" value lists child mailboxes, but hides the namespace prefix.
   #list = yes
 
   # Namespace handles its own subscriptions. If set to "no", the parent
   # namespace handles them (empty prefix should always have this as "yes")
   #subscriptions = yes
#}
 
# Example shared namespace configuration
#namespace shared {
   #separator = /
 
   # Mailboxes are visible under "shared/user@domain/"
   # %%n, %%d and %%u are expanded to the destination user.
   #prefix = shared/%%u/
 
   # Mail location for other users' mailboxes. Note that %variables and ~/
   # expands to the logged in user's data. %%n, %%d, %%u and %%h expand to the
   # destination user's data.
   #location = maildir:%%h/Maildir:INDEX=~/Maildir/shared/%%u
 
   # Use the default namespace for saving subscriptions.
   #subscriptions = no
 
   # List the shared/ namespace only if there are visible shared mailboxes.
   #list = children
#}
 
# System user and group used to access mails. If you use multiple, userdb
# can override these by returning uid or gid fields. You can use either numbers
# or names. <doc/wiki/UserIds>
#mail_uid =
#mail_gid =
 
# Group to enable temporarily for privileged operations. Currently this is
# used only with INBOX when either its initial creation or dotlocking fails.
# Typically this is set to "mail" to give access to /var/mail.
#mail_privileged_group =
 
# Grant access to these supplementary groups for mail processes. Typically
# these are used to set up access to shared mailboxes. Note that it may be
# dangerous to set these if users can create symlinks (e.g. if "mail" group is
# set here, ln -s /var/mail ~/mail/var could allow a user to delete others'
# mailboxes, or ln -s /secret/shared/box ~/mail/mybox would allow reading it).
#mail_access_groups =
 
# Allow full filesystem access to clients. There's no access checks other than
# what the operating system does for the active UID/GID. It works with both
# maildir and mboxes, allowing you to prefix mailboxes names with eg. /path/
# or ~user/.
#mail_full_filesystem_access = no
 
##
## Mail processes
##
 
# Enable mail process debugging. This can help you figure out why Dovecot
# isn't finding your mails.
#mail_debug = no
 
# Log prefix for mail processes. See doc/wiki/Variables.txt for list of
# possible variables you can use.
#mail_log_prefix = "%Us(%u): "
 
# Max. number of lines a mail process is allowed to log per second before it's
# throttled. 0 means unlimited. Typically there's no need to change this
# unless you're using mail_log plugin, which may log a lot. This setting is
# ignored while mail_debug=yes to avoid pointless throttling.
#mail_log_max_lines_per_sec = 10
 
# Don't use mmap() at all. This is required if you store indexes to shared
# filesystems (NFS or clustered filesystem).
#mmap_disable = no
mmap_disable = yes
 
# Rely on O_EXCL to work when creating dotlock files. NFS supports O_EXCL
# since version 3, so this should be safe to use nowadays by default.
#dotlock_use_excl = yes
 
# Don't use fsync() or fdatasync() calls. This makes the performance better
# at the cost of potential data loss if the server (or the file server)
# goes down.
#fsync_disable = no
 
# Mail storage exists in NFS. Set this to yes to make Dovecot flush NFS caches
# whenever needed. If you're using only a single mail server this isn't needed.
#mail_nfs_storage = no
mail_nfs_storage = yes
# Mail index files also exist in NFS. Setting this to yes requires
# mmap_disable=yes and fsync_disable=no.
#mail_nfs_index = no
mail_nfs_index = yes
 
# Locking method for index files. Alternatives are fcntl, flock and dotlock.
# Dotlocking uses some tricks which may create more disk I/O than other locking
# methods. NFS users: flock doesn't work, remember to change mmap_disable.
#lock_method = fcntl
 
# Drop all privileges before exec()ing the mail process. This is mostly
# meant for debugging, otherwise you don't get core dumps. It could be a small
# security risk if you use single UID for multiple users, as the users could
# ptrace() each others processes then.
#mail_drop_priv_before_exec = no
 
# Show more verbose process titles (in ps). Currently shows user name and
# IP address. Useful for seeing who are actually using the IMAP processes
# (eg. shared mailboxes or if same uid is used for multiple accounts).
#verbose_proctitle = no
 
# Valid UID range for users, defaults to 500 and above. This is mostly
# to make sure that users can't log in as daemons or other system users.
# Note that denying root logins is hardcoded to dovecot binary and can't
# be done even if first_valid_uid is set to 0.
#first_valid_uid = 500
#last_valid_uid = 0
 
# Valid GID range for users, defaults to non-root/wheel. Users having
# non-valid GID as primary group ID aren't allowed to log in. If user
# belongs to supplementary groups with non-valid GIDs, those groups are
# not set.
#first_valid_gid = 1
#last_valid_gid = 0
 
# Maximum number of running mail processes. When this limit is reached,
# new users aren't allowed to log in.
#max_mail_processes = 512
 
# Set max. process size in megabytes. Most of the memory goes to mmap()ing
# files, so it shouldn't harm much even if this limit is set pretty high.
#mail_process_size = 256
mail_process_size = 0
 
# Maximum allowed length for mail keyword name. It's only forced when trying
# to create new keywords.
#mail_max_keyword_length = 50
 
# ':' separated list of directories under which chrooting is allowed for mail
# processes (ie. /var/mail will allow chrooting to /var/mail/foo/bar too).
# This setting doesn't affect login_chroot, mail_chroot or auth chroot
# settings. If this setting is empty, "/./" in home dirs are ignored.
# WARNING: Never add directories here which local users can modify, that
# may lead to root exploit. Usually this should be done only if you don't
# allow shell access for users. <doc/wiki/Chrooting.txt>
#valid_chroot_dirs = 
 
# Default chroot directory for mail processes. This can be overridden for
# specific users in user database by giving /./ in user's home directory
# (eg. /home/./user chroots into /home). Note that usually there is no real
# need to do chrooting, Dovecot doesn't allow users to access files outside
# their mail directory anyway. If your home directories are prefixed with
# the chroot directory, append "/." to mail_chroot. <doc/wiki/Chrooting.txt>
#mail_chroot = 
 
##
## Mailbox handling optimizations
##
 
# The minimum number of mails in a mailbox before updates are done to cache
# file. This allows optimizing Dovecot's behavior to do less disk writes at
# the cost of more disk reads.
#mail_cache_min_mail_count = 0
 
# When IDLE command is running, mailbox is checked once in a while to see if
# there are any new mails or other changes. This setting defines the minimum
# time in seconds to wait between those checks. Dovecot can also use dnotify,
# inotify and kqueue to find out immediately when changes occur.
#mailbox_idle_check_interval = 30
 
# Save mails with CR+LF instead of plain LF. This makes sending those mails
# take less CPU, especially with sendfile() syscall with Linux and FreeBSD.
# But it also creates a bit more disk I/O which may just make it slower.
# Also note that if other software reads the mboxes/maildirs, they may handle
# the extra CRs wrong and cause problems.
#mail_save_crlf = no
 
##
## Maildir-specific settings
##
 
# By default LIST command returns all entries in maildir beginning with a dot.
# Enabling this option makes Dovecot return only entries which are directories.
# This is done by stat()ing each entry, so it causes more disk I/O.
# (For systems setting struct dirent->d_type, this check is free and it's
# done always regardless of this setting)
#maildir_stat_dirs = no
 
# When copying a message, do it with hard links whenever possible. This makes
# the performance much better, and it's unlikely to have any side effects.
#maildir_copy_with_hardlinks = yes
 
# When copying a message, try to preserve the base filename. Only if the
# destination mailbox already contains the same name (ie. the mail is being
# copied there twice), a new name is given. The destination filename check is
# done only by looking at dovecot-uidlist file, so if something outside
# Dovecot does similar filename preserving copies, you may run into problems.
# NOTE: This setting requires maildir_copy_with_hardlinks = yes to work.
#maildir_copy_preserve_filename = no
 
##
## mbox-specific settings
##
 
# Which locking methods to use for locking mbox. There are four available:
#  dotlock: Create <mailbox>.lock file. This is the oldest and most NFS-safe
#           solution. If you want to use /var/mail/ like directory, the users
#           will need write access to that directory.
#  dotlock_try: Same as dotlock, but if it fails because of permissions or
#               because there isn't enough disk space, just skip it.
#  fcntl  : Use this if possible. Works with NFS too if lockd is used.
#  flock  : May not exist in all systems. Doesn't work with NFS.
#  lockf  : May not exist in all systems. Doesn't work with NFS.
#
# You can use multiple locking methods; if you do the order they're declared
# in is important to avoid deadlocks if other MTAs/MUAs are using multiple
# locking methods as well. Some operating systems don't allow using some of
# them simultaneously.
#mbox_read_locks = fcntl
#mbox_write_locks = fcntl
 
# Maximum time in seconds to wait for lock (all of them) before aborting.
#mbox_lock_timeout = 300
 
# If dotlock exists but the mailbox isn't modified in any way, override the
# lock file after this many seconds.
#mbox_dotlock_change_timeout = 120
 
# When mbox changes unexpectedly we have to fully read it to find out what
# changed. If the mbox is large this can take a long time. Since the change
# is usually just a newly appended mail, it'd be faster to simply read the
# new mails. If this setting is enabled, Dovecot does this but still safely
# fallbacks to re-reading the whole mbox file whenever something in mbox isn't
# how it's expected to be. The only real downside to this setting is that if
# some other MUA changes message flags, Dovecot doesn't notice it immediately.
# Note that a full sync is done with SELECT, EXAMINE, EXPUNGE and CHECK 
# commands.
#mbox_dirty_syncs = yes
 
# Like mbox_dirty_syncs, but don't do full syncs even with SELECT, EXAMINE,
# EXPUNGE or CHECK commands. If this is set, mbox_dirty_syncs is ignored.
#mbox_very_dirty_syncs = no
 
# Delay writing mbox headers until doing a full write sync (EXPUNGE and CHECK
# commands and when closing the mailbox). This is especially useful for POP3
# where clients often delete all mails. The downside is that our changes
# aren't immediately visible to other MUAs.
#mbox_lazy_writes = yes
 
# If mbox size is smaller than this (in kilobytes), don't write index files.
# If an index file already exists it's still read, just not updated.
#mbox_min_index_size = 0
 
##
## dbox-specific settings
##
 
# Maximum dbox file size in kilobytes until it's rotated.
#dbox_rotate_size = 2048
 
# Minimum dbox file size in kilobytes before it's rotated
# (overrides dbox_rotate_days)
#dbox_rotate_min_size = 16
 
# Maximum dbox file age in days until it's rotated. Day always begins from
# midnight, so 1 = today, 2 = yesterday, etc. 0 = check disabled.
#dbox_rotate_days = 0
 
##
## IMAP specific settings
##
 
protocol imap {
  # Login executable location.
  #login_executable = /usr/libexec/dovecot/imap-login
 
  # IMAP executable location. Changing this allows you to execute other
  # binaries before the imap process is executed.
  #
  # This would write rawlogs into ~/dovecot.rawlog/ directory:
  #   mail_executable = /usr/libexec/dovecot/rawlog /usr/libexec/dovecot/imap
  #
  # This would attach gdb into the imap process and write backtraces into
  # /tmp/gdbhelper.* files:
  #   mail_executable = /usr/libexec/dovecot/gdbhelper /usr/libexec/dovecot/imap
  #
  #mail_executable = /usr/libexec/dovecot/imap
 
  # Maximum IMAP command line length in bytes. Some clients generate very long
  # command lines with huge mailboxes, so you may need to raise this if you get
  # "Too long argument" or "IMAP command line too large" errors often.
  #imap_max_line_length = 65536
 
  # Maximum number of IMAP connections allowed for a user from each IP address.
  # NOTE: The username is compared case-sensitively.
  #mail_max_userip_connections = 10
 
  # Support for dynamically loadable plugins. mail_plugins is a space separated
  # list of plugins to load.
  #mail_plugins = 
  #mail_plugin_dir = /usr/lib/dovecot/imap
 
  # IMAP logout format string:
  #  %i - total number of bytes read from client
  #  %o - total number of bytes sent to client
  #imap_logout_format = bytes=%i/%o
 
  # Override the IMAP CAPABILITY response.
  #imap_capability = 
 
  # ID field names and values to send to clients. Using * as the value makes
  # Dovecot use the default value. The following fields have default values
  # currently: name, version, os, os-version, support-url, support-email.
  #imap_id_send = 
 
  # ID fields sent by client to log. * means everything.
  #imap_id_log =
 
  # Workarounds for various client bugs:
  #   delay-newmail:
  #     Send EXISTS/RECENT new mail notifications only when replying to NOOP
  #     and CHECK commands. Some clients ignore them otherwise, for example OSX
  #     Mail (<v2.1). Outlook Express breaks more badly though, without this it
  #     may show user "Message no longer in server" errors. Note that OE6 still
  #     breaks even with this workaround if synchronization is set to
  #     "Headers Only".
  #   netscape-eoh:
  #     Netscape 4.x breaks if message headers don't end with the empty "end of
  #     headers" line. Normally all messages have this, but setting this
  #     workaround makes sure that Netscape never breaks by adding the line if
  #     it doesn't exist. This is done only for FETCH BODY[HEADER.FIELDS..]
  #     commands. Note that RFC says this shouldn't be done.
  #   tb-extra-mailbox-sep:
  #     With mbox storage a mailbox can contain either mails or submailboxes,
  #     but not both. Thunderbird separates these two by forcing server to
  #     accept '/' suffix in mailbox names in subscriptions list.
  # The list is space-separated.
  #imap_client_workarounds = 
  imap_client_workarounds = delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep
}
 
##
## POP3 specific settings
##
 
protocol pop3 {
  # Login executable location.
  #login_executable = /usr/libexec/dovecot/pop3-login
 
  # POP3 executable location. See IMAP's mail_executable above for examples
  # how this could be changed.
  #mail_executable = /usr/libexec/dovecot/pop3
 
  # Don't try to set mails non-recent or seen with POP3 sessions. This is
  # mostly intended to reduce disk I/O. With maildir it doesn't move files
  # from new/ to cur/, with mbox it doesn't write Status-header.
  #pop3_no_flag_updates = no
 
  # Support LAST command which exists in old POP3 specs, but has been removed
  # from new ones. Some clients still wish to use this though. Enabling this
  # makes RSET command clear all \Seen flags from messages.
  #pop3_enable_last = no
 
  # If mail has X-UIDL header, use it as the mail's UIDL.
  #pop3_reuse_xuidl = no
 
  # Keep the mailbox locked for the entire POP3 session.
  #pop3_lock_session = no
 
  # POP3 UIDL (unique mail identifier) format to use. You can use following
  # variables, along with the variable modifiers described in
  # doc/wiki/Variables.txt (e.g. %Uf for the filename in uppercase)
  #
  #  %v - Mailbox's IMAP UIDVALIDITY
  #  %u - Mail's IMAP UID
  #  %m - MD5 sum of the mailbox headers in hex (mbox only)
  #  %f - filename (maildir only)
  #
  # If you want UIDL compatibility with other POP3 servers, use:
  #  UW's ipop3d         : %08Xv%08Xu
  #  Courier             : %f or %v-%u (both might be used simultaneosly)
  #  Cyrus (<= 2.1.3)    : %u
  #  Cyrus (>= 2.1.4)    : %v.%u
  #  Dovecot v0.99.x     : %v.%u
  #  tpop3d              : %Mf
  #
  # Note that Outlook 2003 seems to have problems with %v.%u format which was
  # Dovecot's default, so if you're building a new server it would be a good
  # idea to change this. %08Xu%08Xv should be pretty fail-safe.
  #
  #pop3_uidl_format = %08Xu%08Xv
 
  # POP3 logout format string:
  #  %i - total number of bytes read from client
  #  %o - total number of bytes sent to client
  #  %t - number of TOP commands
  #  %p - number of bytes sent to client as a result of TOP command
  #  %r - number of RETR commands
  #  %b - number of bytes sent to client as a result of RETR command
  #  %d - number of deleted messages
  #  %m - number of messages (before deletion)
  #  %s - mailbox size in bytes (before deletion)
  #pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s
 
  # Maximum number of POP3 connections allowed for a user from each IP address.
  # NOTE: The username is compared case-sensitively.
  #mail_max_userip_connections = 3
 
  # Support for dynamically loadable plugins. mail_plugins is a space separated
  # list of plugins to load.
  #mail_plugins = 
  #mail_plugin_dir = /usr/lib/dovecot/pop3
 
  # Workarounds for various client bugs:
  #   outlook-no-nuls:
  #     Outlook and Outlook Express hang if mails contain NUL characters.
  #     This setting replaces them with 0x80 character.
  #   oe-ns-eoh:
  #     Outlook Express and Netscape Mail breaks if end of headers-line is
  #     missing. This option simply sends it if it's missing.
  # The list is space-separated.
  #pop3_client_workarounds = 
  pop3_client_workarounds = outlook-no-nuls oe-ns-eoh
}
 
##
## MANAGESIEVE specific settings
##
 
protocol managesieve {
  # Login executable location.
  #login_executable = /usr/libexec/dovecot/managesieve-login
 
  # MANAGESIEVE executable location. See IMAP's mail_executable above for 
  # examples how this could be changed.
  #mail_executable = /usr/libexec/dovecot/managesieve
 
  # Maximum MANAGESIEVE command line length in bytes. This setting is 
  # directly borrowed from IMAP. But, since long command lines are very
  # unlikely with MANAGESIEVE, changing this will not be very useful.  
  #managesieve_max_line_length = 65536
 
  # If, for some inobvious reason, the sieve_storage remains unset, the 
  # managesieve daemon uses the specification of the mail_location to find out 
  # where to store the sieve files (see explaination in README.managesieve). 
  # The example below, when uncommented, overrides any global mail_location 
  # specification and stores all the scripts in '~/mail/sieve' if sieve_storage 
  # is unset. However, you should always use the sieve_storage setting.
  # mail_location = mbox:~/mail
 
  # To fool managesieve clients that are focused on timesieved you can
  # specify the IMPLEMENTATION capability that the dovecot reports to clients 
  # (default: dovecot).
  #managesieve_implementation_string = Cyrus timsieved v2.2.13
}
 
##
## LDA specific settings
##
 
protocol lda {
  # Address to use when sending rejection mails.
  postmaster_address = postmaster@example.com
 
  # Hostname to use in various parts of sent mails, eg. in Message-Id.
  # Default is the system's real hostname.
  #hostname = 
 
  # Support for dynamically loadable plugins. mail_plugins is a space separated
  # list of plugins to load.
  #mail_plugins = 
  #mail_plugin_dir = /usr/lib/dovecot/lda
 
  # If user is over quota, return with temporary failure instead of
  # bouncing the mail.
  #quota_full_tempfail = no
 
  # Format to use for logging mail deliveries. You can use variables:
  #  %$ - Delivery status message (e.g. "saved to INBOX")
  #  %m - Message-ID
  #  %s - Subject
  #  %f - From address
  #deliver_log_format = msgid=%m: %$
 
  # Binary to use for sending mails.
  #sendmail_path = /usr/lib/sendmail
 
  # Subject: header to use for rejection mails. You can use the same variables
  # as for rejection_reason below.
  #rejection_subject = Rejected: %s
 
  # Human readable error message for rejection mails. You can use variables:
  #  %n = CRLF, %r = reason, %s = original subject, %t = recipient
  #rejection_reason = Your message to <%t> was automatically rejected:%n%r
 
  # UNIX socket path to master authentication server to find users.
  #auth_socket_path = /var/run/dovecot/auth-master
}
 
##
## Authentication processes
##
 
# Executable location
#auth_executable = /usr/libexec/dovecot/dovecot-auth
 
# Set max. process size in megabytes.
#auth_process_size = 256
 
# Authentication cache size in kilobytes. 0 means it's disabled.
# Note that bsdauth, PAM and vpopmail require cache_key to be set for caching
# to be used.
#auth_cache_size = 0
# Time to live in seconds for cached data. After this many seconds the cached
# record is no longer used, *except* if the main database lookup returns
# internal failure. We also try to handle password changes automatically: If
# user's previous authentication was successful, but this one wasn't, the
# cache isn't used. For now this works only with plaintext authentication.
#auth_cache_ttl = 3600
# TTL for negative hits (user not found). 0 disables caching them completely.
#auth_cache_negative_ttl = 3600
 
# Space separated list of realms for SASL authentication mechanisms that need
# them. You can leave it empty if you don't want to support multiple realms.
# Many clients simply use the first one listed here, so keep the default realm
# first.
#auth_realms =
 
# Default realm/domain to use if none was specified. This is used for both
# SASL realms and appending @domain to username in plaintext logins.
#auth_default_realm = 
 
# List of allowed characters in username. If the user-given username contains
# a character not listed in here, the login automatically fails. This is just
# an extra check to make sure user can't exploit any potential quote escaping
# vulnerabilities with SQL/LDAP databases. If you want to allow all characters,
# set this value to empty.
#auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@
 
# Username character translations before it's looked up from databases. The
# value contains series of from -> to characters. For example "#@/@" means
# that '#' and '/' characters are translated to '@'.
#auth_username_translation =
 
# Username formatting before it's looked up from databases. You can use
# the standard variables here, eg. %Lu would lowercase the username, %n would
# drop away the domain if it was given, or "%n-AT-%d" would change the '@' into
# "-AT-". This translation is done after auth_username_translation changes.
#auth_username_format =
 
# If you want to allow master users to log in by specifying the master
# username within the normal username string (ie. not using SASL mechanism's
# support for it), you can specify the separator character here. The format
# is then <username><separator><master username>. UW-IMAP uses "*" as the
# separator, so that could be a good choice.
#auth_master_user_separator =
 
# Username to use for users logging in with ANONYMOUS SASL mechanism
#auth_anonymous_username = anonymous
 
# More verbose logging. Useful for figuring out why authentication isn't
# working.
#auth_verbose = no
 
# Even more verbose logging for debugging purposes. Shows for example SQL
# queries.
#auth_debug = no
 
# In case of password mismatches, log the passwords and used scheme so the
# problem can be debugged. Enabling this also enables auth_debug.
#auth_debug_passwords = no
 
# Maximum number of dovecot-auth worker processes. They're used to execute
# blocking passdb and userdb queries (eg. MySQL and PAM). They're
# automatically created and destroyed as needed.
#auth_worker_max_count = 30
 
# Host name to use in GSSAPI principal names. The default is to use the
# name returned by gethostname(). Use "$ALL" to allow all keytab entries.
#auth_gssapi_hostname =
 
# Kerberos keytab to use for the GSSAPI mechanism. Will use the system 
# default (usually /etc/krb5.keytab) if not specified.
#auth_krb5_keytab = 
 
# Do NTLM and GSS-SPNEGO authentication using Samba's winbind daemon and
# ntlm_auth helper. <doc/wiki/Authentication/Mechanisms/Winbind.txt>
#auth_use_winbind = no
 
# Path for Samba's ntlm_auth helper binary.
#auth_winbind_helper_path = /usr/bin/ntlm_auth
 
# Number of seconds to delay before replying to failed authentications.
#auth_failure_delay = 2
 
auth default {
  # Space separated list of wanted authentication mechanisms:
  #   plain login digest-md5 cram-md5 ntlm rpa apop anonymous gssapi otp skey
  #   gss-spnego
  # NOTE: See also disable_plaintext_auth setting.
  mechanisms = plain
 
  #
  # Password database is used to verify user's password (and nothing more).
  # You can have multiple passdbs and userdbs. This is useful if you want to
  # allow both system users (/etc/passwd) and virtual users to login without
  # duplicating the system users into virtual database.
  #
  # <doc/wiki/PasswordDatabase.txt>
  #
  # By adding master=yes setting inside a passdb you make the passdb a list
  # of "master users", who can log in as anyone else. Unless you're using PAM,
  # you probably still want the destination user to be looked up from passdb
  # that it really exists. This can be done by adding pass=yes setting to the
  # master passdb. <doc/wiki/Authentication.MasterUsers.txt>
 
  # Users can be temporarily disabled by adding a passdb with deny=yes.
  # If the user is found from that database, authentication will fail.
  # The deny passdb should always be specified before others, so it gets
  # checked first. Here's an example:
 
  #passdb passwd-file {
    # File contains a list of usernames, one per line
    #args = /etc/dovecot.deny
    #deny = yes
  #}
 
  # PAM authentication. Preferred nowadays by most systems. 
  # Note that PAM can only be used to verify if user's password is correct,
  # so it can't be used as userdb. If you don't want to use a separate user
  # database (passwd usually), you can use static userdb.
  # REMEMBER: You'll need /etc/pam.d/dovecot file created for PAM
  # authentication to actually work. <doc/wiki/PasswordDatabase.PAM.txt>
  passdb pam {
    # [session=yes] [setcred=yes] [failure_show_msg=yes] [max_requests=<n>]
    # [cache_key=<key>] [<service name>]
    #
    # session=yes makes Dovecot open and immediately close PAM session. Some
    # PAM plugins need this to work, such as pam_mkhomedir.
    #
    # setcred=yes makes Dovecot establish PAM credentials if some PAM plugins
    # need that. They aren't ever deleted though, so this isn't enabled by
    # default.
    #
    # max_requests specifies how many PAM lookups to do in one process before
    # recreating the process. The default is 100, because many PAM plugins
    # leak memory.
    #
    # cache_key can be used to enable authentication caching for PAM
    # (auth_cache_size also needs to be set). It isn't enabled by default
    # because PAM modules can do all kinds of checks besides checking password,
    # such as checking IP address. Dovecot can't know about these checks
    # without some help. cache_key is simply a list of variables (see
    # doc/wiki/Variables.txt) which must match for the cached data to be used.
    # Here are some examples:
    #   %u - Username must match. Probably sufficient for most uses.
    #   %u%r - Username and remote IP address must match.
    #   %u%s - Username and service (ie. IMAP, POP3) must match.
    # 
    # The service name can contain variables, for example %Ls expands to
    # pop3 or imap.
    #
    # Some examples:
    #   args = session=yes %Ls
    #   args = cache_key=%u dovecot
    #args = dovecot
  }
 
  # System users (NSS, /etc/passwd, or similiar)
  # In many systems nowadays this uses Name Service Switch, which is
  # configured in /etc/nsswitch.conf. <doc/wiki/AuthDatabase.Passwd.txt>
  #passdb passwd {
    # [blocking=yes] - See userdb passwd for explanation
    #args = 
  #}
 
  # Shadow passwords for system users (NSS, /etc/shadow or similiar).
  # Deprecated by PAM nowadays.
  # <doc/wiki/PasswordDatabase.Shadow.txt>
  #passdb shadow {
    # [blocking=yes] - See userdb passwd for explanation
    #args = 
  #}
 
  # PAM-like authentication for OpenBSD.
  # <doc/wiki/PasswordDatabase.BSDAuth.txt>
  #passdb bsdauth {
    # [cache_key=<key>] - See cache_key in PAM for explanation.
    #args =
  #}
 
  # passwd-like file with specified location
  # <doc/wiki/AuthDatabase.PasswdFile.txt>
  #passdb passwd-file {
    # [scheme=<default password scheme>] [username_format=<format>]
    # <Path for passwd-file>
    #args = 
  #}
 
  # checkpassword executable authentication
  # NOTE: You will probably want to use "userdb prefetch" with this.
  # <doc/wiki/AuthDatabase.CheckPassword.txt>
  #passdb checkpassword {
    # Path for checkpassword binary
    #args = 
  #}
 
  # SQL database <doc/wiki/AuthDatabase.SQL.txt>
  #passdb sql {
    # Path for SQL configuration file, see doc/dovecot-sql-example.conf
    #args = 
  #}
 
  # LDAP database <doc/wiki/AuthDatabase.LDAP.txt>
  #passdb ldap {
    # Path for LDAP configuration file, see doc/dovecot-ldap-example.conf
    #args = 
  #}
 
  # vpopmail authentication <doc/wiki/AuthDatabase.VPopMail.txt>
  #passdb vpopmail {
    # [cache_key=<key>] - See cache_key in PAM for explanation.
    # [quota_template=<template>] - %q expands to Maildir++ quota
    #   (eg. quota_template=quota_rule=*:backend=%q)
    #args =
  #}
 
  #
  # User database specifies where mails are located and what user/group IDs
  # own them. For single-UID configuration use "static".
  #
  # <doc/wiki/UserDatabase.txt>
  #
 
  # "prefetch" user database means that the passdb already provided the
  # needed information and there's no need to do a separate userdb lookup.
  # This can be made to work with SQL and LDAP databases, see their example
  # configuration files for more information how to do it.
  # <doc/wiki/UserDatabase.Prefetch.txt>
  #userdb prefetch {
  #}
 
  # System users (NSS, /etc/passwd, or similiar). In many systems nowadays this
  # uses Name Service Switch, which is configured in /etc/nsswitch.conf.
  # <doc/wiki/AuthDatabase.Passwd.txt>
  userdb passwd {
    # [blocking=yes] - By default the lookups are done in the main dovecot-auth
    # process. This setting causes the lookups to be done in auth worker
    # proceses. Useful with remote NSS lookups that may block.
    # NOTE: Be sure to use this setting with nss_ldap or users might get
    # logged in as each others!
    #args = 
  }
 
  # passwd-like file with specified location
  # <doc/wiki/AuthDatabase.PasswdFile.txt>
  #userdb passwd-file {
    # [username_format=<format>] <Path for passwd-file>
    #args =
  #}
 
  # checkpassword executable user database lookup
  # <doc/wiki/AuthDatabase.CheckPassword.txt>
  #userdb checkpassword {
    # Path for checkpassword binary
    #args = 
  #}
 
  # static settings generated from template <doc/wiki/UserDatabase.Static.txt>
  #userdb static {
    # Template for the fields. Can return anything a userdb could normally
    # return. For example:
    #
    #  args = uid=500 gid=500 home=/var/mail/%u
    #
    # If you use deliver, it needs to look up users only from the userdb. This
    # of course doesn't work with static because there is no list of users.
    # Normally static userdb handles this by doing a passdb lookup. This works
    # with most passdbs, with PAM being the most notable exception. If you do
    # the user verification another way, you can add allow_all_users=yes to
    # the args in which case the passdb lookup is skipped.
    #
    #args =
  #}
 
  # SQL database <doc/wiki/AuthDatabase.SQL.txt>
  #userdb sql {
    # Path for SQL configuration file, see doc/dovecot-sql-example.conf
    #args = 
  #}
 
  # LDAP database <doc/wiki/AuthDatabase.LDAP.txt>
  #userdb ldap {
    # Path for LDAP configuration file, see doc/dovecot-ldap-example.conf
    #args = 
  #}
 
  # vpopmail <doc/wiki/AuthDatabase.VPopMail.txt>
  #userdb vpopmail {
  #}
 
  # User to use for the process. This user needs access to only user and
  # password databases, nothing else. Only shadow and pam authentication
  # requires roots, so use something else if possible. Note that passwd
  # authentication with BSDs internally accesses shadow files, which also
  # requires roots. Note that this user is NOT used to access mails.
  # That user is specified by userdb above.
  user = root
 
  # Directory where to chroot the process. Most authentication backends don't
  # work if this is set, and there's no point chrooting if auth_user is root.
  # Note that valid_chroot_dirs isn't needed to use this setting.
  #chroot = 
 
  # Number of authentication processes to create
  #count = 1
 
  # Require a valid SSL client certificate or the authentication fails.
  #ssl_require_client_cert = no
 
  # Take the username from client's SSL certificate, using 
  # X509_NAME_get_text_by_NID() which returns the subject's DN's
  # CommonName. 
  #ssl_username_from_cert = no
 
  # It's possible to export the authentication interface to other programs:
  #socket listen {
    #master {
      # Master socket provides access to userdb information. It's typically
      # used to give Dovecot's local delivery agent access to userdb so it
      # can find mailbox locations.
      #path = /var/run/dovecot/auth-master
      #mode = 0600
      # Default user/group is the one who started dovecot-auth (root)
      #user = 
      #group = 
    #}
    #client {
      # The client socket is generally safe to export to everyone. Typical use
      # is to export it to your SMTP server so it can do SMTP AUTH lookups
      # using it.
      #path = /var/run/dovecot/auth-client
      #mode = 0660
    #}
  #}
}
 
# If you wish to use another authentication server than dovecot-auth, you can
# use connect sockets. They are assumed to be already running, Dovecot's master
# process only tries to connect to them. They don't need any other settings
# than the path for the master socket, as the configuration is done elsewhere.
# Note that the client sockets must exist in the login_dir.
#auth external {
#  socket connect {
#    master {
#      path = /var/run/dovecot/auth-master
#    }
#  }
#}
 
##
## Dictionary server settings
##
 
# Dictionary can be used by some plugins to store key=value lists.
# Currently this is only used by dict quota backend. The dictionary can be
# used either directly or though a dictionary server. The following dict block
# maps dictionary names to URIs when the server is used. These can then be
# referenced using URIs in format "proxy::<name>".
 
dict {
  #quota = mysql:/etc/dovecot-dict-quota.conf 
  #expire = db:/var/lib/dovecot/expire.db
}
 
# Path to Berkeley DB's configuration file. See doc/dovecot-db-example.conf
#dict_db_config = 
 
##
## Plugin settings
##
 
plugin {
  # Here you can give some extra environment variables to mail processes.
  # This is mostly meant for passing parameters to plugins. %variable
  # expansion is done for all values.
 
  # Quota plugin. Multiple backends are supported:
  #   dirsize: Find and sum all the files found from mail directory.
  #            Extremely SLOW with Maildir. It'll eat your CPU and disk I/O.
  #   dict: Keep quota stored in dictionary (eg. SQL)
  #   maildir: Maildir++ quota
  #   fs: Read-only support for filesystem quota
  #
  # Quota limits are set using "quota_rule" parameters, either in here or in
  # userdb. It's also possible to give mailbox-specific limits, for example:
  #   quota_rule = *:storage=1048576
  #   quota_rule2 = Trash:storage=102400
  # User has now 1GB quota, but when saving to Trash mailbox the user gets
  # additional 100MB.
  #
  # Multiple quota roots are also possible, for example:
  #   quota = dict:user::proxy::quota
  #   quota2 = dict:domain:%d:proxy::quota_domain
  #   quota_rule = *:storage=102400
  #   quota2_rule = *:storage=1048576
  # Gives each user their own 100MB quota and one shared 1GB quota within
  # the domain.
  #
  # You can execute a given command when user exceeds a specified quota limit.
  # Each quota root has separate limits. Only the command for the first
  # exceeded limit is excecuted, so put the highest limit first.
  # Note that % needs to be escaped as %%, otherwise "% " expands to empty.
  #   quota_warning = storage=95%% /usr/local/bin/quota-warning.sh 95
  #   quota_warning2 = storage=80%% /usr/local/bin/quota-warning.sh 80
  #quota = maildir
 
  # ACL plugin. vfile backend reads ACLs from "dovecot-acl" file from maildir
  # directory. You can also optionally give a global ACL directory path where
  # ACLs are applied to all users' mailboxes. The global ACL directory contains
  # one file for each mailbox, eg. INBOX or sub.mailbox. cache_secs parameter
  # specifies how many seconds to wait between stat()ing dovecot-acl file
  # to see if it changed.
  #acl = vfile:/etc/dovecot-acls:cache_secs=300
 
  # To let users LIST mailboxes shared by other users, Dovecot needs a
  # shared mailbox dictionary. For example:
  #acl_shared_dict = file:/var/lib/dovecot/shared-mailboxes
 
  # Convert plugin. If set, specifies the source storage path which is
  # converted to destination storage (mail_location) when the user logs in.
  # The existing mail directory is renamed to <dir>-converted.
  #convert_mail = mbox:%h/mail
  # Skip mailboxes which we can't open successfully instead of aborting.
  #convert_skip_broken_mailboxes = no
  # Skip directories beginning with '.'
  #convert_skip_dotdirs = no
  # If source storage has mailbox names with destination storage's hierarchy
  # separators, replace them with this character.
  #convert_alt_hierarchy_char = _
 
  # Trash plugin. When saving a message would make user go over quota, this
  # plugin automatically deletes the oldest mails from configured mailboxes
  # until the message can be saved within quota limits. The configuration file
  # is a text file where each line is in format: <priority> <mailbox name>
  # Mails are first deleted in lowest -> highest priority number order
  #trash = /etc/dovecot-trash.conf
 
  # Expire plugin. Mails are expunged from mailboxes after being there the
  # configurable time. The first expiration date for each mailbox is stored in
  # a dictionary so it can be quickly determined which mailboxes contain
  # expired mails. The actual expunging is done in a nightly cronjob, which
  # you must set up:
  #   dovecot --exec-mail ext /usr/libexec/dovecot/expire-tool
  #expire = Trash 7 Spam 30
  #expire_dict = proxy::expire
 
  # Lazy expunge plugin. Currently works only with maildirs. When a user
  # expunges mails, the mails are moved to a mailbox in another namespace
  # (1st). When a mailbox is deleted, the mailbox is moved to another namespace
  # (2nd) as well. Also if the deleted mailbox had any expunged messages,
  # they're moved to a 3rd namespace. The mails won't be counted in quota,
  # and they're not deleted automatically (use a cronjob or something).
  #lazy_expunge = .EXPUNGED/ .DELETED/ .DELETED/.EXPUNGED/
 
  # Events to log. Also available: flag_change append
  #mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename
  # Group events within a transaction to one line.
  #mail_log_group_events = 
  # Available fields: uid, box, msgid, from, subject, size, vsize, flags
  # size and vsize are available only for expunge and copy events.
  #mail_log_fields = uid box msgid size
 
  # Sieve plugin (http://wiki.dovecot.org/LDA/Sieve) and ManageSieve service
  # 
  # Location of the active script. When ManageSieve is used this is actually 
  # a symlink pointing to the active script in the sieve storage directory. 
  #sieve=~/.dovecot.sieve
  #
  # The path to the directory where the personal Sieve scripts are stored. For 
  # ManageSieve this is where the uploaded scripts are stored.
  #sieve_dir=~/sieve
}

yum install smf-spf

dnl **
dnl ** enable smf-spf (Sender Policy Framework) **
dnl **
define(`confMILTER_MACROS_HELO', confMILTER_MACROS_HELO`, {verify}')dnl
INPUT_MAIL_FILTER(`smf-spf', `S=unix:/var/run/smfs/smf-spf.sock, T=S:30s;R:1m')dnl

/etc/init.d/smf-spf restart
/etc/init.d/sendmail restart