Symptoms
In /var/log/plesk-roundcube/errors
following record might be found:
IMAP Error: Login failed for [email protected] from xxx.xxx.xxx.xxx (X-Real-IP: xxx.xxx.xxx.xxx). AUTHENTICATE DIGEST-MD5: in /usr/share/psa-roundcube/program/lib/Roundcube/rcube_imap.php on line 193 (POST /?_task=mail&_action=refresh)
Cause
Roundcube cannot use DIGEST-MD5 authorization method.
Resolution
-
Login to the server via SSH.
-
Edit file
/usr/share/psa-roundcube/config/config.inc.php
file in any text editor; -
Comment out (un-comment) the
CRAM-MD5
authorization type in order to replace DIGEST-MD5 authorization method with default one:$config['smtp_auth_type'] = 'CRAM-MD5';
$config['imap_auth_type'] = 'CRAM-MD5';