DNS- Mail Issue

[Andre Lorenz <andre@highsecure-net.de>]

Hi,

I've several debian etch servers with latest updates running. This 
servers have  public IP-addresses.
on server a is my primary public DNS (YYY.Y.YYY.YYY) for serveral 
Domains running. This DNS is also apporved and verified by DENIC / 
INTERNIC / DTAG .....
on my second server with an other pub. IP (XXX.X.XXX.XXX) i've running a 
qmail-server for all Domains.

There is following problem:
If i send to diffent domains mail, i'm getting sometimes for some 
domains following error :

195.4.92.211 does not like recipient.
Remote host said: 550 inconsistent or no DNS PTR record for XXX.X.XXX.XXX (see RFC 1912 2.1)
Giving up on 195.4.92.211.

in this case it is freenet that is causing the problem.

i've already checked my dns-setup for typos, or inconsistent entries but 
i cand find them. Does i need a special setup on ?
or could this be a qmail-problem.

Thanks for help.

Andre
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