Error sending email from Rouncube: The user roundcube_sysuser is not allowed to send email

Created:

2016-11-16 13:01:35 UTC

Modified:

2017-04-24 12:00:02 UTC

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Error sending email from Rouncube: The user roundcube_sysuser is not allowed to send email

Applicable to:

  • Plesk 12.5 for Linux
  • Plesk 11.5 for Linux
  • Plesk 12.0 for Linux

Symptoms

Unable to send email via Roundcube with "Switch on limitations on outgoing email messages" option enabled under Mail Server Settings .

The following error is shown under /usr/local/psa/var/log/maillog :

Jun 11 05:51:02 py_limit_out[13538]: ERROR Rejecting message: system user uid='10206' is not allowed to send mail   
Jun 11 05:51:02 plesk sendmail[13537]: handlers_stderr: DATA REPLY:554:5.7.0 Your message could not be sent. The user roundcube_sysuser is not allowed to send email.
Jun 11 05:51:02 plesk sendmail[13537]: handlers_stderr: REJECT
Jun 11 05:51:02 plesk sendmail[13537]: REJECT during call 'limit-out' handler

Cause

Roundcube user reached outgoing email limit.

Resolution

Add the Roundcube user to whitelist using the command below:

# /usr/local/psa/admin/sbin/mailmng-outgoing --add-to-whitelist --sysuser=roundcube_sysuser

In case of the same error with Horde installation, use the following command:

# /usr/local/psa/admin/sbin/mailmng-outgoing --add-to-whitelist --sysuser=horde_sysuser
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