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Exchange 2010 Queue Error - 3.Jan.2012 4:55:03 PM

phreakin

Posts: 17
Joined: 27.Aug.2008
Status: offline

We have a remote site that is having their queue back up and can't send or receive message inside or outside the organization. We see the following for the queue error:

Send connector Intra-Organization SMTP Send Connector has failed to authenticate with 10.16.10.31:25. The response from the remote site is 235 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.

This error shows up in the event log for all 3 of the remote sites it tries to send to and receive from. All other sites are able to send back and forth fine. Any ideas? My first thought with the message garble was ASA filtering but apparently the network engineer is saying it's not being filtered. ASA 5510 8.2(4) for those curious.

Post #: 1

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RE: Exchange 2010 Queue Error - 16.Jan.2012 9:42:29 PM

Paul Cunningham

Posts: 198
Joined: 26.Aug.2009
From: Australia
Status: offline

I'd ask the firewall guy to check again, those ASA's cause problems all the time with communications between mail servers.

If you want to check for yourself try to telnet from one server to another on port 25.

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(in reply to phreakin)

Post #: 2

RE: Exchange 2010 Queue Error - 14.Feb.2012 3:32:23 PM

Statikd

Posts: 27
Joined: 2.Oct.2007
Status: offline

As Phil stated, there is an SMTP fixup protocol that some ASA's can cause issues with mail flow. Open a Telnet session from your exchange server, and try to telnet via port 25. If your SMTP headers look similar to:

220*************************************

Check this KB and go talk to your firewall guys:

http://support.microsoft.com/kb/320027

(in reply to phreakin)

Post #: 3