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====== Enable sieve plugin (CentOS 7) ======

#Install Dovecot Manage Sieve
<code>
yum install dovecot-pigeonhole
</code>

#edit 20-managesieve.conf
<code>
vim /etc/dovecot/conf.d/20-managesieve.conf
</code>

#Uncomment protocols
<code>
protocols = $protocols sieve
</code>

#Edit 10-master.conf
<code>
vim /etc/dovecot/conf.d/10-master.conf
</code>

#add auth-master unix-listener to service auth
<code>
service auth {
  unix_listener auth-client {
    group = mail
    mode = 0660
    user = dovecot
  }
  unix_listener auth-master {
    group = mail
    mode = 0660
    user = dovecot
  }
  user = dovecot
}
</code>

#Append this to the end of 10-master.conf
<code>
service managesieve-login {
  inet_listener sieve {
    port = 4190
  }
}

service managesieve {
}

protocol sieve {
  managesieve_max_line_length = 65536
  managesieve_implementation_string = dovecot
  log_path = /var/log/dovecot-sieve-errors.log
  info_log_path = /var/log/dovecot-sieve.log
}

plugin {
  sieve = ~/mail/%d/%n/dovecot.sieve
  sieve_global_path = /etc/dovecot/sieve/default.sieve
  sieve_dir = ~/mail/%d/%n/sieve
  sieve_global_dir = /etc/dovecot/sieve/global/
}

lda_mailbox_autocreate = yes

lda_mailbox_autosubscribe = yes

protocol lda {
  mail_plugins = $mail_plugins autocreate sieve quota
  postmaster_address = postmaster@testdomain.com
  hostname = srv.testdomain.com
  auth_socket_path = /var/run/dovecot/auth-master
  log_path = /var/log/dovecot-lda-errors.log
  info_log_path = /var/log/dovecot-lda.log
}

protocol lmtp {
  mail_plugins = $mail_plugins autocreate sieve quota
  log_path = /var/log/dovecot-lmtp-errors.log
  info_log_path = /var/log/dovecot-lmtp.log
}
</code>

#edit 90-sieve.conf
<code>
vim /etc/dovecot/conf.d/90-sieve.conf
</code>

<code>
plugin {
  # The path to the user's main active script. If ManageSieve is used, this the
  # location of the symbolic link controlled by ManageSieve.
  #sieve = ~/.dovecot.sieve
  sieve = ~/mail/%d/%n/dovecot.sieve

  # The default Sieve script when the user has none. This is a path to a global
  # sieve script file, which gets executed ONLY if user's private Sieve script
  # doesn't exist. Be sure to pre-compile this script manually using the sievec
  # command line tool.
  # --> See sieve_before fore executing scripts before the user's personal
  #     script.
  #sieve_default = /var/lib/dovecot/sieve/default.sieve

  # Directory for :personal include scripts for the include extension. This
  # is also where the ManageSieve service stores the user's scripts.
  #sieve_dir = ~/sieve
  sieve_dir = ~/mail/%d/%n/sieve
</code>

#touch and set the permissions on the log files, else you will get permission errors
<code>
touch /var/log/dovecot-lda-errors.log
chmod 660 /var/log/dovecot-lda-errors.log
chown dovecot.mail /var/log/dovecot-lda-errors.log

touch /var/log/dovecot-lda.log
chmod 660 /var/log/dovecot-lda.log
chown dovecot.mail /var/log/dovecot-lda.log

touch /var/log/dovecot-lmtp-errors.log
chmod 660 /var/log/dovecot-lmtp-errors.log
chown dovecot.mail /var/log/dovecot-lmtp-errors.log

touch /var/log/dovecot-lmtp.log
chmod 660 /var/log/dovecot-lmtp.log
chown dovecot.mail /var/log/dovecot-lmtp.log
</code>

#Create default sieve rule
<code>
mkdir /etc/dovecot/sieve
nano /etc/dovecot/sieve/default.sieve
</code>

<code>
require ["fileinto"];
# rule:[SPAM]
if header :contains "X-Spam-Flag" "YES" {
        fileinto "Spam";
}
# rule:[SPAM2]
elsif header :matches "Subject" ["*money*","*Viagra*","Cialis"] {
        fileinto "Spam";
}
</code>

<code>
touch /etc/dovecot/sieve/default.sieve
chmod +w /etc/dovecot/sieve/default.sieve
chown dovecot.mail /etc/dovecot/sieve/default.sieve
</code>

#Restart dovecot, if service starts, means configuration is successful
<code>
service dovecot restart
</code>

#Configure roundcube
<code>
vim /etc/roundcubemail/config.inc.php
</code>

<code>
$config['plugins'] = array(
    'archive',
    'zipdownload',
    'password', 
    'managesieve',
);

// default contents of filters script (eg. default spam filter)
$config['managesieve_default'] = '/etc/dovecot/sieve/default.sieve';
</code>

#Configure Exim
<code>
vim /etc/exim/exim.conf
</code>

<code>
localuser:
  driver = accept
  #transport = local_delivery
  transport = dovecot
  condition = ${lookup{$local_part}lsearch{/etc/exim/domains/$domain/passwd}{true}{false}}



######################################################################
# TRANSPORTS CONFIGURATION #
######################################################################
begin transports

dovecot:
  driver = pipe
  command = /usr/libexec/dovecot/dovecot-lda -e -d $local_part@$domain -f $sender_address -a $original_local_part@$original_domain
  return_path_add
  log_output = true
  delivery_date_add
  envelope_to_add
  user = ${extract{2}{:}{${lookup{$local_part}lsearch{/etc/exim/domains/$domain/passwd}}}}
  group = mail
  return_output
</code>

#Restart exim, if service starts, means configuration is successful
<code>
service exim restart
</code>