[Logcheck-devel] Bug#448788: postfix/postgrey: "Sender address rejected: " are not filtered out

[Frédéric Brière]

On Wed, Oct 31, 2007 at 07:56:55PM -0400, Justin Pryzby wrote:
> > I am running postfix with postgrey for graylisting and I'm getting tons
> > of :
> > 
> >    Oct 31 16:20:21 hermes postfix/smtpd[6778]: NOQUEUE: reject: RCPT from $HOST[$IP]: 450 4.2.0 <>: Sender address rejected: Server unavailable.  Try again later.; from=<> to=<abqnm$WHATEVER at iucha.net> proto=ESMTP  helo=<$HOST>
>
> However it's not clear to me why the sender address is being rejected,
> as <> is not only valid but required to be allowed for bounces.  I

That'd be the greylisting bit; notice the 450 response code.

The intriguing part is that there are already specific greylisting rules
in violations.ignore.d.  (Even though they don't appear to match the
current output of postgrey.)  And postgrey itself comes with its own set
of rules (which I assume are more up-to-date).  Neither set matches what
I see here.

Florin, did you by any chance configure postgrey to emit a different log
message via --greylist-text?


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