[courier-users] Prevent courier from bouncing

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Hi list.

I use courier mostly with useraccount-based delivery (authpam) and let my=20
users control which addresses exist and which don't. They can do this by=20
providing suitable .courier-files.

A problem is, that if accidentially a user prohibits user "mail" from=20
accessing his homedir (chmod 700 ~), courier accepts all mail to user-fooba=
r=20
and decides later in the delivery process if it is deliverable or not.

Is thare any option to tell esmtpd that unaccessible home dirs should be a=
=20
showstopper for that user?=20
If this occures, I want the user not to get any mail at all, it should be=20
rejected with a temporary error. I run a cron job to fix the issue, but at=
=20
the moment, this is kind of a race condition.

As far as I read the docs, there seems not to be an option for this behavio=
ur.=20
what do you think of such an option, could this be implemented?

Background:
If this situation occures, courier behaves much like QMail, accepting all s=
hit=20
and then bouncing it back to whereever Return-Path points to. This makes my=
=20
box a spam-machine (I think of silly bounces as spam) and I got listed at=20
spamcop for such reasons in the past.

So I want to prevent QMail-style mass-bouncing globally, what I think is no=
t=20
possible at the moment.

cu, Bernd

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