/dev/rob0:
> On Tue, Mar 27, 2012 at 04:10:59PM -0500, I wrote:
> > On Tue, Mar 27, 2012 at 10:21:14PM +0200, Sebastian Wiesinger wrote:
> > > I have a setup with handles a few virtual domains. For one domain
> > > only I want mails not to be rejected with an 5xx error code but be
> > > deferred with a 4xx error code. Is that possible?
> >
> > main.cf :
> > smtpd_client_restrictions = check_recipient_access
> > hash:/etc/postfix/deferred_recipient[, ... ]
> >
> > deferred_recipient :
> >
> > example.com defer_if_reject
> > [ ... ]
>
> That of course turns any rejection which comes after this restriction
> into a deferral, and that's not quite what you said you want. There
> are ways to apply it only to unknown recipients. I would move any
> spam-blocking restriction to smtpd_client_restrictions, after any
> necessary permit_* restrictions and before check_recipient_access.
> Then the unknown recipient rejection, which happens in
> smtpd_recipient_restrictions, will be subject to defer_if_reject.
You will need to specify an explicit "reject_unknown_recipient" at
the end of smtpd_recipient_restrictions.
The implicit "unknown recipient" test at the end is not part of
smtpd_recipient_restrictions, and this implicit test currently does
not play along with any defer_if features requested from within
smtpd_recipient_restrictions.
I suppose this could (should) be changed without breaking things,
but making this 100% safe will take half a day and I don't have
that time at the moment.
Wietse
