[Dovecot] Configuration of LMTP Reject Code

[Timo Sirainen]

On Tue, 2011-02-22 at 11:02 +0100, Petter Urkedal wrote:
>     userdb {
>       driver = passwd
>       args = home=/srv/mail/nbi.ku.dk/%1n/%n mail=maildir:~/Maildir
>     }

The problem with passwd is that it can't separate "user doesn't exist"
from "temporary error". http://wiki2.dovecot.org/UserDatabase/NSS can
separate these, but it hasn't been tested much..

> > > We use Postfix on the front-end, which is very configurable in this
> > > respect.  I don't see a way to override the error code from LMTP,
> > > though, but suggestions are welcome.
> > 
> > I don't really like adding settings that have very few users..
> 
> I understand, it's really a workaround.  A global directive to turn all
> permanent errors into temporary ones, would do as well, since any error
> from LMTP is a potential issue we want to know about.  I'm not sure
> whether that's any nicer from your point of view.

Well, there aren't really any other permanent errors.. Quota already has
quota_full_tempfail setting.