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Re: address not listed for hostname

From: Clodoaldo Pinto (clodoaldo.pintogmail.com)
Date: Wed Aug 09 2006 - 10:06:16 CDT


2006/8/9, /dev/rob0 <rob0gmx.co.uk>:
> On Wednesday 09 August 2006 09:14, Clodoaldo Pinto wrote:
> > I have this message in my log:
> > Aug 9 12:10:55 rm-1004-05 postfix/smtpd[31829]: warning:
> > 65.23.153.13: address not listed for hostname rm-1004-05.serve.com
> >
> > I have read the FAQ section about it at
> > http://www.postfix.org/faq.html#paranoid
> >
> > It seems to me that both the reverse DNS entry and the A record
> > are OK:
>
> Now, sure. But apparently not at Aug 9 12:10:55 -0200 (or whatever
> timezone.) It could have been a transient DNS failure, or possibly the
> serve.com zone was changed.
>
> Was it a spam? I see that this IP is listed at Spambag (but no other
> RBL's.) It seems that many spammers are doing rapid changes in both
> forward and reverse DNS to try to stay a jump or two ahead of those who
> are trying to list them.

No, it was not a spam.

Clodoaldo