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Moved users to new server now smtp mail is not coming throught - Help !!!

Posted on 2008-10-26
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Last Modified: 2013-11-30
I come into work today Sunday in the UK and moved my users onto the new exchange server - but now the SMTP mail is not coming through ?

Where should I start to look..

Ian
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Question by:ise438
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jjrowan earned 500 total points
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Did you update your Domain Name Services MX record to direct mail to the new server?
Is the firewall on the new server configured to allow SMTP through to Exchange?  Have you tried to run telnet <ip of new server> smtp from a workstation on the LAN to see if you get to the initial SMTP dialog on the new Exchange server?  Do you have a router on your LAN that uses network address translation (NAT) to take a single public IP address and directs port 25 to the new box?
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