[Dovecot] vpopmail auth always return "unknown user"

[Timo Sirainen]

On Fri, 2010-08-27 at 16:15 +0200, Toorop wrote:

> I'm working on a setup of dovecot 2 + netqmail + vpopmail 5.5 but auth 
> doesn't works :(
..
> #1  0x000000000041f735 in vpopmail_lookup (auth_request=0x23c4358, 
> callback=0x410770 <auth_request_userdb_callback>) at
> userdb-vpopmail.c:99
>          _module = 0x23b13f0

Yeah, vpopmail keeps changing their APIs in ways I have no idea what to
do to fix it. So here's my solution for now:

http://hg.dovecot.org/dovecot-2.0/rev/f90590836165

You can always use vpopmail's checkpassword binary or access its
database some other way (passdb/userdb sql?)