Drupal + Postfix Integration Under Ubuntu 8.04 (Hardy) - Page 6

Deliver Incoming Mails Through the Dovecot LDA

To make Postfix use Dovecot you need to append one line to /etc/postfix/master.cf:

vim /etc/postfix/master.cf
dovecot   unix  -       n       n       -       -       pipe
  flags=DRhu user=vmail:vmail argv=/usr/lib/dovecot/deliver -d ${recipient}

Reload Postfix:

/etc/init.d/postfix reload

Now make Postfix deliver mails through this service:

postconf -e virtual_transport=dovecot
postconf -e dovecot_destination_recipient_limit=1


Configure Dovecot

Dovecot supports PO3, POP3S, IMAP and IMAPS. To enable all these services modify /etc/dovecot/dovecot.conf to match the following settings:

vim /etc/dovecot/dovecot.conf
protocols = imap imaps pop3 pop3s
mail_location = maildir:/home/vmail/%d/%n/Maildir
auth default {
  mechanisms = plain login
  passdb sql {
    args = /etc/dovecot/dovecot-sql.conf
  userdb static {
    args = uid=5000 gid=5000 home=/home/vmail/%d/%n allow_all_users=yes
  socket listen {
    master {
      path = /var/run/dovecot/auth-master
      mode = 0600
      user = vmail
    client {
      path = /var/spool/postfix/private/auth
      mode = 0600
      user = postfix
      group = postfix
protocol lda {
  log_path = /home/vmail/dovecot-deliver.log
  global_script_path = /home/vmail/globalsieverc
  postmaster_address = [email protected]
  auth_socket_path = /var/run/dovecot/auth-master
  mail_plugins = cmusieve

Edit /etc/dovecot/dovecot-sql.conf and make sure the following directives are set:

vim /etc/dovecot/dovecot-sql.conf
driver = mysql
connect = host= dbname=drupal_example_com user=drupal_example_com password=opensesame
default_pass_scheme = PLAIN-MD5
password_query = SELECT mail AS user, pass AS password FROM users WHERE mail='%u';

Then you must restart Dovecot:

/etc/init.d/dovecot restart

That’s it! Now Drupal and Postfix share the same authentication repository.



  1. Falko Timme, © 2008, Virtual Users And Domains With Postfix, Courier, MySQL And SquirrelMail (Ubuntu 8.04 LTS), https://www.howtoforge.com/virtual-users-domains-postfix-courier-mysql-squirrelmail-ubuntu8.04
  2. Christoph Haas, © 2007, Howto: ISP-style Email Server with Debian-Etch and Postfix, http://workaround.org/articles/ispmail-etch/
  3. Matt Butcher, Learning Drupal 6 Module Development, ISBN 190-4811-80-9, © 2008 Packt Publishing
  4. Thomas Barregren, Mailserver Drupal Module, http://drupal.org/project/mailserver
  5. Alex Saavedra, © 2008, Mailfix Drupal Module, http://drupal.org/project/mailfix
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4 Comment(s)

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By: Paul H

It appears that dovecot expects a returned field called 'password' whilst the mysql and drupal returns a field called 'pass' which means that authentications via pop3 and imap don't work.

Any thoughts?


By: Nik Sulaiman

in /etc/dovecot/dovecot-sql.conf

add the underlined text:

password_query = SELECT mail AS user, pass AS password FROM users WHERE mail='%u';

I was having the problem too, thanks for the post.

Managed to authenticate via imap successfully. Hope it helps.


Nik Sulaiman,

 Thank you for your fix. It has been updated in the tutorial.

 Alex Saavedra

By: plen

The mail_plugins line in the dovecot.conf should be set to just "sieve" not "cmusieve"