On Sat, 2012-05-26 at 13:51 +0100, Kayode Odeyemi wrote: > Below is my configuration > > passdb { > args = scheme=CRYPT username_format=%u /etc/dovecot/users > driver = passwd-file > }
Dovecot isn't using NIS. It's using user accounts in /etc/dovecot/users file. And in any case set auth_debug_passwords=yes to debug authentication.