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Exchange 2010 outbound mail flow.

Posted on 2011-02-16
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Last Modified: 2012-05-11
We have exchange 2010. We face an error when we send emails to some domains.

#550 4.4.7 QUEUE.Expired; message expired ##

Also, this is an error from Queue Viewer:

421 4.4.2 Connection dropped due to Sockket Error.
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Question by:AeonAeon
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by:BCipollone
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