On Wed, Nov 10, 1999 at 04:38:07PM +0100, Markus Wuebben wrote:
> > > Nov 10 16:08:00 medusa qmail: 942246480.704387 delivery 21: deferral:
> > > Connected_to_131.246.137.51_but_greeting_failed./Remote_host_said:
> > > _451_Connection_Refused_(Paranoid)_from:_195.227.34.12/
Your DNS setup is broken.
195.227.34.12 -> mail.id-pro.net
mail.id-pro.net -> CNAME (!!) mail1.id-pro.net
The machine (news.uni-kiel.de) does "paranoid" lookups. It does a
reverse and gets "mail.id-pro.net" it queries for that host and gets
"mail1.id-pro.net". That two don't match and it rejects the connection.
Btw. If you have any MX records pointing to mail.id-pro.net this is
broken, too, as MX records may NEVER point at CNAMEs.
\Maex
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