On Thu, Jan 29, 2009 at 12:22:13PM +0100, mouss wrote:
> Jan 29 00:38:17 imlil postmx/smtpd[26222]: NOQUEUE: reject: RCPT from
> unknown[147.203.208.166]: 550 5.7.1 Client host rejected: cannot find
> your hostname, [147.203.208.166];
> from=<3ff.4.69709687-17084...@cherryimprovise.com> to=<mo...@netoyen.net>
> proto=ESMTP helo=<redirector-vm01-evip-aol.CherryImprovise.com>
>
> => as you can see, reject_unknown_client rejects this even if it has a
> PTR.
In legitimate cases, I've experienced that this response ("cannot find your
hostname", which is the same response as if there was no PTR at all) can be
confusing for the administrator on the client side. Perhaps something like
"your reverse hostname doesn't match your IP" would be more informative (so
they don't have to contact us to ask what it means) ?
Geert
