asked on SMTP Relay to Remote Active Directory Site.” and the last error is 451 4.4.0 Primary Target IP address responded
hi guys
I have two sites both on Exchange 2010, both on Windows 2012 R2. I've attached a screenshot of what I am seeing in the queues from Site B to Site A. Port 25 is definitely open. I can telnet. I have restarted both servers. So I don't understand what on earth is going on and why these queues are occurring.
I read that it could be self signed SSL related? So I've tried re-applying the SMTP service to the current certificate and restarted the Transport services, but still these queues remain.
Any help would be greatly appreciated guys,
Thanks for helping
Yashy
Exchange-issues.jpg
I have two sites both on Exchange 2010, both on Windows 2012 R2. I've attached a screenshot of what I am seeing in the queues from Site B to Site A. Port 25 is definitely open. I can telnet. I have restarted both servers. So I don't understand what on earth is going on and why these queues are occurring.
I read that it could be self signed SSL related? So I've tried re-applying the SMTP service to the current certificate and restarted the Transport services, but still these queues remain.
Any help would be greatly appreciated guys,
Thanks for helping
Yashy
Exchange-issues.jpg
ExchangeWindows OSActive Directory
Last Comment
Yashy
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ASKER
At Site B (which is where I believe the problem may lie), the logs shows 'Inbound authentication failed with error UnexpectedExchangeAuthBlob
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ASKER
I'd like to give points to the other guys for their help.
ASKER
I managed to solve the issue, but would like the other guys to get points for their contribution.
II'm trying to do Telnet sessions on both Site A and Site B. I am at Site A and Site B is where I took the snapshot of the queues from. I keep getting 'Unrecognized command' at both sides when I get to the part where I am supposed to enter 'ehlo server_name'. Once I try again, it goes to the next bit. I'm not mistyping anything either. I get to the part of the body and after I enter the '.' and hit enter, nothing happens. This is on both sides. Bizarre.