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Migrating to a second server and the migrated mailboxs cant send internal mail back to users still on the original server

Posted on 2006-07-12
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Last Modified: 2010-03-06
I am migrating from 2000 exchange to 2003 exchange. I made an smtp connector and setup the second server as a bridgehead and migrated about 20 of the 50 people to the second server. Everything works perfectly except for the migrated employees cant send email back to the original server. Employees have no problem sending mail to the new server
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Question by:Brendle
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by:Sembee
ID: 17094917
Did you have an SMTP connector on the old machine?
You don't need an SMTP Connector for email delivery, and you don't need to have an SMTP Connector for each server.

Make sure that you haven't set a smart host on the SMTP virtual server directly.
Also check that there are no restrictions on the SMTP virtual server on the old machine that blocks the traffic.

What does message tracking say?

Simon.
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by:Brendle
ID: 17096155
I did not have a connector before I started the project
Will mail flow automaticly to the new server without a smtp connector?
No smart host is setup
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by:Brendle
ID: 17096162
Message tracking said the messages are unavailable or have left the Exchange enviornment
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Sembee earned 500 total points
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As long as the two servers can see each other, then messages will flow between the servers correctly without any intervention - as long as there aren't any settings on the server to cause problems.

Can you telnet to port 25 on the "other" server?

telnet ip.ad.re.ss 25
telnet servername 25
telnet servername.domain.com 25

All three combinations should work - if they don't, then that can indicate a connection issue.

Do you have message tracking enabled on both servers? If message tracking is enabled on the new server and shows the message as being sent out, you should be able to find the message on the other end.

Simon.
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