Failed authentication via Roundcube: AUTHENTICATE DIGEST-MD5




  • Avatar
    Benjamin Brummer

    I think this could be fixed by changing

    auth_mechanisms = plain login cram-md5 digest-md5 apop


    auth_mechanisms = plain login cram-md5 apop

    in /etc/dovecot/dovecot.conf 


  • Avatar
    Ivan Postnikov

    Hi @Benjamin,

    Thank you for notice.

    Since the cause is RoundCube not using DIGEST-MD5 it is better to modify RoundCube configuration.

    Dovecot configuration changes will affect other webmails or mail clients.

  • Avatar
    Firstserv Support

    Same issues with email client connections from Apple devices on IMAP Plesk Version 17.8.11 Update #45


    May 13 07:36:15  dovecot: imap-login: Disconnected (auth failed, 1 attempts in 2 secs): user=xxxx, method=DIGEST-MD5, rip=xx.xx.xx.xx, lip=xx.xx.xx.xx, session=<Jz73Ib+IcYlWj+Yo>

  • Avatar
    Daria Gavrilova

    Hello @Firstserv Support,

    In case if other IMAP clients (e.g. Outlook) work as expected, then the most probable cause of such behavior is that there is a misconfiguration of the Apple Mail.
    So to resolve such issue it will be required to contact AppleCare.

    If issues can be seen with other IMAP clients as well, please submit a request to Plesk Technical Support.

Please sign in to leave a comment.

Have more questions? Submit a request