How to set filters in roundcube with Sieve

Ok, You have your fantastic mail server with roundcube as web client.

All work great but hey, wait a moment… how can i set a filter in roundcube?

Filtering emails in webclient (gmail, outlook etc) its a normal thing but in your mail server it’s not automatic, and you have to do a bit of work for have it in your roundcube.

This is a quick tutorial on how to configure all on Ubuntu 12.04 with postfix+dovecot+roundcube (I assume that you already installed them).

Let’s start:

• First of all, we install Sieve with:

  apt-get install dovecot-sieve dovecot-managesieved

  (Sieve is a tool that allow to set custom script for filter emails)

• in /etc/dovecot/conf.d/20-lmtp.conf we add this:

  protocol lmtp {
    postmaster_address = postmaster@YOUR-DOMAIN.com
    mail_plugins = $mail_plugins sieve
  }
  

  (comment existing protocol lmtp configuration)

• edit /etc/dovecot/conf.d/90-sieve.conf and inside “plugin” configuration add:

     sieve = ~/.dovecot.sieve
     sieve_global_path = /var/lib/dovecot/sieve/default.sieve
     sieve_dir = ~/sieve
     sieve_global_dir = /var/lib/dovecot/sieve/
  

• edit /etc/dovecot/conf.d/20-managesieve.conf for enable listing on port 4190, this should be the top of config file:

  ##
  ## ManageSieve specific settings
  ##
  
  protocols = $protocols sieve
  
  # Service definitions
  
  service managesieve-login {
    inet_listener sieve {
      port = 4190
    }
  .........

• now restart dovecot with:

  service dovecot restart

• If you try to telnet 4190 it should answer as follow:

  root@server:/# telnet 127.0.0.1 4190
  Trying 127.0.0.1...
  Connected to 127.0.0.1.
  Escape character is '^]'.
  "IMPLEMENTATION" "Dovecot Pigeonhole"
  "SIEVE" "fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave"
  "NOTIFY" "mailto"
  "SASL" "PLAIN LOGIN"
  "STARTTLS"
  "VERSION" "1.0"
  OK "Dovecot ready."
  
  

• if all is working, now you can download filter plugin for roundube from:

   https://github.com/JohnDoh/Roundcube-Plugin-SieveRules-Managesieve

  and copy the content in:

   roundcube_folder/plugins/sieverules/

• Activate the plugin in roundcube config file roundcube_folder/config/config.inc.php:

   $rcmail_config['plugins'] = array(......, 'sieverules');

And this is the result!