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Exchange svr will not deliver messages

By FelixOrtiz ·
I have an exchange server that will not deliver to a specific internet domain. It will send with no problem anywhere else but when sent to the domain that I am having problems with it just kicks back an undeliverable report. I have tried making a separate address space in the IMC for the domain but that didn't solve the problem. It is almost as if it doesn't bother try. I can ping the MX record ip from the server with no problem & I can open a telnet session to SMTP of the destination IP from the server.
Exchange 5.5 SP 4

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Have you looked into Open Relay?

by bob.hall In reply to Exchange svr will not del ...

Your server might have been deemed an Open Relay problem with the other Domain, you might want to check with the Domain Admin and see if they black listed you as an Open Relay server. If that's the problem, then look into closing your open relay..

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