Re: Lots of problems with Dovecot 2.4

Add userdb_use_cache = no to dovecot.conf to fix 1. above. See doveconf -a | grep userdb. restart dovecot.

For example, I use:

userdb passwd { use_cache = no }

use_cache = no is a MUST when auth_cache_size > 0 for dovecot 2.4.1 .