Article ID: 119522, created on Jan 8, 2014, last review on Aug 4, 2014

  • Applies to:
  • Plesk Automation 11.5
  • Plesk 11.0 for Linux
  • Plesk 11.5 for Linux
  • Plesk 10.3 for Linux/Unix


You are unable to view mail messages in the Horde and Atmail webmail Inbox. Inbox messages are present in Maildir, but in a WebMail interface a blank page is visible instead of the Inbox messages.


The issue occurs because of a sorting issue in Horde, which happens rarely as a result of changing the way messages are sorted in the mailbox.

The issue may occur if the 'courier-imap' server is advertised 'SORT' in 'IMAP_CAPABILITY', but server-side sorting is disabled.


To fix the issue with server-side sorting, set the option IMAP_DISABLETHREADSORT=0 in the IMAPD configuration files: /etc/courier-imap/imapd and /etc/courier-imap/imapd-ssl, then restart the 'courier-imap' service.

# service courier-imap restart

To fix the issue on the Horde side, remove sorting preferences for the affected mail account from the Horde database:

  1. Create a backup of the Horde database:

    mysqldump -uadmin -p`cat /etc/psa/.psa.shadow` horde > hordebackup.sql
  2. Check and delete the sorting preferences of the mail account:

    mysql> select * from horde_prefs where pref_uid='user@domain.tld' and pref_name='sortpref';
    mysql> delete from horde_prefs where pref_uid='user@domain.tld' and pref_name='sortpref';
    mysql> select * from horde_prefs where pref_uid='user@domain.tld' and pref_name='sortpref';

You can find a discussion about this issue on the Horde forums:

Additionally for Parallels Plesk Automation:

The insructons above should be performed on the Service Node where the ppa_webmail package is installed. If the admin password for MySQL is not known, you can peform these actions using the horde user:

# mysqldump -uhorde -p`cat /etc/psa-webmail/horde/.horde.shadow` horde > hordebackup.sql
# mysql -uhorde -p`cat /etc/psa-webmail/horde/.horde.shadow` horde

Then, follow to step #2 above.

Search Words

No messages

Horde webmail is not showing email


horde webmail

webmail error inbox shows

webmail error

atmail webmail is not showing email


atmail webmail

Error inbox

sorting hide mail

Webmail worng

Horde no new messages


Emails don't show in inbox

a914db3fdc7a53ddcfd1b2db8f5a1b9c 56797cefb1efc9130f7c48a7d1db0f0c 01bc4c8cf5b7f01f815a7ada004154a2 29d1e90fd304f01e6420fbe60f66f838 0a53c5a9ca65a74d37ef5c5eaeb55d7f aea4cd7bfd353ad7a1341a257ad4724a f4ce8084cb23619ef5fe9428ecc388ea dd0611b6086474193d9bf78e2b293040 33a70544d00d562bbc5b17762c4ed2b3 e0aff7830fa22f92062ee4db78133079 caea8340e2d186a540518d08602aa065

Email subscription for changes to this article
Save as PDF