Article ID: 123772, created on Dec 3, 2014, last review on Dec 3, 2014

  • Applies to:
  • Plesk 12.0 for Linux


If you've recently updated your version of Dovecot and getting this error in RoundCube:

Connection to storage server failed


It may be that the dovecot index files are for an older version of dovecot, and don't work with the new version.


To resolve that issue, simply delete all dovecot index files, and dovecot will re-create them when it notices they're missing.

You should test this on one user first, before doing it on all users.

# cd /var/qmail/mailnames
# service dovecot stop
# find /var/qmail/mailnames | grep  dovecot | xargs rm -f
# service dovecot start

Dovecot will recreate the dovecot* files once the user logs in.

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