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Subject: IPv6 Problem - no DNS A-data returned
From: jo <cgplist@scheko.net>
To: CommuniGate Pro Discussions <CGatePro@mail.stalker.com>
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While waiting for an expected mail from SixXS I had a look at the CGP
log (5.3.8):

20:45:31.028 1 SMTPI-000972(nlams01.sixxs.net) failed to resolve
'sixxs.net' relay 'mx0.paphosting.net'. Error Code=no DNS A-data
returned
20:45:31.028 1 SMTPI-000972(nlams01.sixxs.net) Return-Path
'www-data@sixxs.net' rejected: no DNS A-data returned

and some further tries with same results.

There really is no A Record for that MX, only AAAA however one of
their three MX that has one.
I'm not sure which party is not RFC-compliance in this case. Any
suggestions how I can force CGPro to resolve alternative MX-servers if
the first one has no A-Record?
Or is this probably a bug?


jo