I'm running Ubuntu 14.10 installed postfix dovecot vimbadmin and roundcube.

Everything works except dovecot.

When I restart dovecot I get this:

stop: Unknown instance: 

dovecot start/running, proccess 6580

In my var/log/dovecot.log file I get this:

Fatal: service(auth) Group doesn't exist: postifx (See service auth { unix_listener /var/run/dovecot/auth-userdb { group } } setting)

So i probably have some problems with the settings, i will post those two if its necessary, but i'm hoping maybe someone all ready had this problem and its a quick fix.

  • 1
    Group doesn't exist: postifx - is that a typo? Nov 13, 2014 at 11:55

1 Answer 1


You presumably have a typo, postifx should be postfix. Search the dovecot config files for postifx and fix those.

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