Cannot access filter settings when logged on using a short name: Cannot connect to Sieve server

Created:

2017-05-03 00:50:16 UTC

Modified:

2017-08-08 13:28:23 UTC

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Cannot access filter settings when logged on using a short name: Cannot connect to Sieve server

Applicable to:

  • Plesk Onyx for Linux

Symptoms

  1. Short-name authorization is enabled on the server.

  2. When trying to access filter settings the following error appears in Roundcube:

    Cannot connect to Sieve server
    
  3. The following message can be found in /var/log/syslog:

    dovecot: managesieve-login: Aborted login (auth failed, 1 attempts in 2 secs): user=<plain>, method=DIGEST-MD5, rip=127.0.0.1, lip=127.0.0.1, secured, session=<vfCt35tO9Kd/AAAB>
    

Cause

The issue is caused by a product bug with id #PPPM-6179 which will be fixed in future Plesk updates.

Resolution

  1. Open /usr/share/psa-roundcube/plugins/sieverules/config.inc.php in a text editor.

  2. Set plain authentication for sieverules plugin:

    $config['sieverules_auth_type'] = 'PLAIN';
    
  3. Make sure that sieverules_auth_cid value equals to null:

    $config['sieverules_auth_cid'] = null; 
    
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