Moving a secondary MS Exchange server

We recently added a secondary email server and all was well while the server was in the same LAN as the primary server. However, after moving to our DR site that connects to the main site via VPN, the servers can "see" each other, but mail between them fails to connect. I can telnet from either to the other, and the only change to the 2nd server was the IP address. I have tried to enable every log I can find to see where the problem is coming from, but its still failing...
fyr3byt3Asked:
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davorinCommented:
Do both servers have access to AD and DNS servers? Have DNS records for moved server changed to new IP?
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fyr3byt3Author Commented:
Yes & yes. I can resolve and ping the server from both locations & vice versa. The 2 servers can even ping/telnet/see eacho other, just MS Exchange fails to push the emails between them...
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Mahmoud SabrySenior IT Systems EngineerCommented:
did you verify the site membership for each server, please confirm that server IP's is inthe same subnet as its site
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fyr3byt3Author Commented:
Yes. I might be a little closer. Although I can ping & telnet between the servers, I cannot reach any of the shares on the server (admin or user). I am not sure why - I can RDP into the server & File Sharing is exceptioned in the WIN FW settings...
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davorinCommented:
Do you have open only some ports on link (routers) between your sites?
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fyr3byt3Author Commented:
No. However, I fixed the share issue. The windows FW was configured to allow file and printer sharing, but the scope of the rule was for the server's immediate subnet only. I can now see the shares on the server from any other server @ any location, but the emails still aren't being delivered...
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fyr3byt3Author Commented:
I am combing the firewall logs to see if I can find a blocked port. If I use nmap on a PC @ the main branch to scan the remote server & the local server, does it matter that the description of SMTP port is different (even though they have the same OS & Exchange version installed):

Remote Server (DR) -
PORT      STATE SERVICE    VERSION
-------------------------------------------------------------------------------
25/tcp    open   smtp          Cisco PIX sanitized smtpd

Local Server -
PORT      STATE SERVICE    VERSION
-------------------------------------------------------------------------------
25/tcp    open  smtp          Microsoft ESMTP 6.0.3790.3959

And that there are several RPC ports open on the local server that don't show up on the remote?
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davorinCommented:
Maybe it could be of some help - ports used by exchange:
http://www.petrikb.com/ports_used_by_exchange.htm
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fyr3byt3Author Commented:
Thanks for the info. I am getting closer. :) After seeing that the windows firewall was blocking connections, I switched it off & rebooted. Now, all the same ports seem to be open, but there still seems to be a problem (maybe config). Let me elaborate a little more on what I am seeing that leads me to believe they can't talk to each other fully:

If I open the Exchange System Manager and drill down to the Servers section, they both show up and I can see the sub-items (Queues, Storage Groups, & Protocols). However, in the Queues list, they each have a Queue targeting each other & the messages get "piled up" and don't deliver...

I can see the messages, freeze & unfreeze them, and try to force the connection.

I did find a problem where the PIX fws between the 2 servers were "filtering" SMTP traffic & got that fixed. However, the above queue issue is still happening...
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fyr3byt3Author Commented:
LOL

Just as I hit Submit on the last post, the queue on each server pointing to the other cleared... I guess the PIX issue was causing it and it took some time to work itself out... I think we can stick a fork in this one... :)
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Alan HardistyCo-OwnerCommented:
This question has been classified as abandoned and is being closed as part of the Cleanup Program.  See my comment at the end of the question for more details.
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Windows Server 2003

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