From: Noel Jones (no email)
Date: Thu Jul 01 2004 - 19:02:10 EDT
On Thu, Jul 01, 2004 at 11:43:59PM +0200, Dominique Blas wrote:
> Hi,
>
> I don't like to post for such a problem that seems a bit more a local DNS problem rather than a Postfix problem but
> I didn't find any misconfiguration in my DNS and a dig -x gives the good answer.
>
> Postfix doesn't want to give (is not able to give, doesn't found, has no anwer from the name server) an answer for A PTR that exists.
>
> A dig -x gives the good answer so why is Postfix unable to find it ?
>
Since you don't provide any config info or log entries, I'm sort of
guessing here, but it sounds as if you are running postfix with the
chroot flag enabled in master.cf, and the chroot jail isn't populated
with everything it needs to do DNS lookups.
To diagnose DNS problems, be sure to run tests as the postfix user,
and if you run postfix chrooted you will need to chroot to the postfix
spooldir first.
If you have another working system, the obvious answer is find what's
different about the postfix config on the working system.
If this doesn't help, come back with details about your configuration
and log entries of what's happening.
-- Noel Jones
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