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Exchange 2000 10% outbnd msg NO Delivery

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7 replies

by techrerpublic 2 views

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100% 2k Shop
Exch Srv primary DNS to Gate secondary ISP Mail Exchanger (first it was all internall)
Under Exch Admin MMC under a retry mail msg got the following msg...
"The remote server did not respond to a connection attempt." ++
"Message Submitted to Categorizer" then it is going to the Routing and Queueing Engine.
>>>Technet says, that w2k srv does not have a built-in routing engine and the fallback is DNS routing.<<<
If I use telnet mail.xxx.com 25 helo command I can talk to the remote mail srv.
Ping and trace is all OK.... Please HELP..

7 replies

by frobo

Hi,

what is your IMC Configuration looking like ?
For Example :Is Your Exchange Server configured to deliver Mail?s via DNS or is it configured to an host?
Have you turned on the IMC Loging, maybe you can see their the Problem.

Frobo

by soldat

Also, check your, and your ISP (if win2k) DNS settings for 'recursive' 'non recursive' resolution. I had a similiar problem when an external DNS server setting didn't 'jive' with the internal DNS server setting. Only seems to happen with IMC, and only if the address cannot resolve to your local DNS.

or not.

by techrerpublic

Well..
the Problem was within DNS, Exch2k relies completely on DNS.
*our AD GC Srvs where pointing to themselves, changed it that PDC<>BDC
*AD GC had the "." ROOT under Forwarders, so the Root Hints where grayed out
*AD GC Srv deleted the "." enabled Forwarders and Seed DNS Srvs
*Pointed all other Srv to PDC and BDC
FYI PDC & BDC does not exits in a w2k anymore, mention it to clarify it better.

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