Author: Peter Bowyer Date: To: Konstantin Kletschke, exim-users Subject: Re: [Exim] recently getting smtp errors from gmx
Konstantin Kletschke wrote: > Hi :/
>
> Damn, when comes the day I fully understand this DNS stuff :(
The point you're missing is that your servers are not authoratative for the
reverse zone which your IPs live in - your ISP is. You need to ask them to
put in rDNS entries for you, or (less likely) delegate the zone to your name
servers.
(If you don't understand the basics here, don't go asking them to
sub-delegate a CIDR rDNS zone to you. It'll have your brain in bits for
weeks).
