On Mon, Oct 12, 2015 at 08:53:13PM +0200, Heiko Schlittermann wrote:
> Jim Pazarena <exim@???> (Mo 12 Okt 2015 17:22:40 CEST):
> > I use exim to verify rdns.
> > It occasionally determines a failure which I cannot 'prove'.
> > Not with nslookup. not with dig.
>
> How do you try to prove it? Where do you see that failure? In the logs?
The O/S is also relevant. Some *BSD systems return hard failures
from getnameinfo() and/or gethostbyaddr() even when the underlying
DNS lookup tempfailed.
--
Viktor.
