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Exachange 2003 & 2010 routing connector problems - mail not being delivered

Posted on 2013-10-22
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Last Modified: 2013-11-14
we started with exchange 2003 and now migrating over to 2010. We have both 2003 and 2010 in co-existence. Incoming emails flow to 2003 and then through the 2003-2010  connecter to 2010. Problem is that email with attachments that are bigger than 10mbs (tried 12 to 16mb) are not being passed through by 2010. Tracking in 2003 shows this

exchange connector
I checked the size limit in 2003 and in 2010. It's set for 50mbs and I have no firewalls or spam filtering between the 2 systems. And both systems are in the same domain

Going the other way works fine
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Question by:iamuser
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Spartan_1337 earned 500 total points
ID: 39591824
Did you verify all settings in Exchange 2010?
There are plenty of blogs on how to do this but please verify that this is setup correctly.

http://4sysops.com/archives/how-to-change-the-allowable-message-size-in-exchange-2010/
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Author Comment

by:iamuser
ID: 39592146
I did do a check and everything has been set to 50MB. On each of the receive connector for 2010 I have it set to 50MB. In 2003 I have the Default SMTP set to 50 for session limit and unchecked for message size. Global limit settings are 50 for both 2010 and 2003. Not sure what I'm missing but the problem still exists
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Expert Comment

by:Spartan_1337
ID: 39592912
On the 2010 server, check the message tracking logs and search or that recipient and post those or at least show error codes.
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Author Closing Comment

by:iamuser
ID: 39648092
Thanks, there was a connector that I missed it was set to lower than 50 megs. That caused the problem
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