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Windows 2003 server not allowed to relay off Exchnage server.....

Posted on 2009-04-24
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Last Modified: 2013-11-30
We have a W2K3 server @ our hosting site that we want to be able to send emails from via smtp calls. I have set it up as a relay in ESM, so it should be allowed to relay off our exchange server. When I telnet from that server to the exchange server, on port 25, it is able to send fine as long as the RCPT TO: is to an internal user. If I try the same test to an external user, I get:

550 5.7.1 Unable to relay for <external mail address>

BTW, this server is not a in our domain

Thanks!
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Question by:IATexpert
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Raj-GT earned 1000 total points
ID: 24225096
When you send an e-mail to an internal user, you are not actually relaying. The server will accept your message because it is for the authorised domain. I would still double check the relay settings in ESM.

Do you have the correct public IP of the hosted server listed to allow relay in ESM?
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by:IATexpert
ID: 24225246
Thanks for jogging my memory on this. This server has multiple IP's and the request to have this relay was for a partcular address and not the primary address of the server. Once I set it to relay from it primary address, all worked well. Thanks
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by:Raj-GT
ID: 24225406
That's a grade 'C' answer!?
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