Unable to login to Roundcube: Login failed

Created:

2016-12-18 06:42:21 UTC

Modified:

2017-08-08 13:09:38 UTC

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Unable to login to Roundcube: Login failed

Applicable to:

  • Plesk 12.0 for Linux

Symptoms

Unable to login to Roundcube:

Login failed.

In /var/log/plesk-roundcube/errors following error can be found:

[06-Dec-2016 15:43:35 +0000]: <5sohq1bq> IMAP Error: Login failed for test@example.com from  203.0.113.1(X-Real-IP:  203.0.113.1,X-Forwarded-For:  203.0.113.2, 127.0.0.1). STARTTLS required in /
usr/share/psa-roundcube/program/lib/Roundcube/rcube_imap.php on line 197 (POST /?_task=login?_task=login&_action=login)

IMAP_TLS_REQUIRED is set to 1 in /etc/courier-imap/imapd-ssl :

# grep IMAP_TLS_REQUIRED /etc/courier-imap/imapd-ssl | grep -v "#"
IMAP_TLS_REQUIRED=1

Cause

Resolution

  1. Set IMAP_TLS_REQUIRED=0 :
    # grep IMAP_TLS_REQUIRED /etc/courier-imap/imapd-ssl | grep -v "#"
    IMAP_TLS_REQUIRED=1
    1. Restart Imap service:

      service courier-imapd restart

      service courier-imaps restart

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