Dear customer:
We have ended the support for Exchange 5.5 server. We will troubleshoot on the Exchange 2003 server and will try to resolve the issue.
In order to better troubleshoot the issue, please help collect the following information:
1. Check whether you can ping each other?
2. Check whether you can telnet Exchange 5.5 on port 25 on Exchange server 2003,
3. Check whether you can telnet Exchange 2003 on port 25 on Exchange server 5.5,
4. Check whether you install 898060 hotfix on Exchange server 2003, if no, install it and reboot the server, check the effect.
Network connectivity between clients and servers may fail after you install security update MS05-019 or Windows Server 2003 Service Pack 1
http://support.microsoft.com/kb/898060/en-us
5. According to the following article, check the store.exe file versions, if it is older than the version that described in the following article, please install them on Exchange 5.5 server.
The Store.exe process on an Exchange 5.5 Server computer may stop responding, and event 1220 and event 1114 are logged
http://support.microsoft.com/kb/833317/en-us
A message from a foreign X.400 system causes a non-delivery report to be generated in Exchange 5.5
http://support.microsoft.com/kb/829706/en-us
6. On the Exchange server 2003, check whether afd.sys file version is greater than the following article, if not, install the following hotfix, and check the effect.
The Afd.sys file triggers a "Stop 0x000000D1" error on a Windows Server 2003-based computer
http://support.microsoft.com/kb/894070/en-us
7. Check whether you install antivirus software on Exchange server 2003, if so, check whether you exclude the following directory:
C:\PROGRAM FILES\EXCHSRVR\ and all its sub folders
C:\WINNT\SYSTEM32\INETSRV\ and all its sub folders
For more information about Exchange Server 2003 and antivirus software coexists, please refer to the following documents:
Recommendations for troubleshooting an Exchange Server computer with antivirus software installed
http://support.microsoft.com/kb/245822/en-us
Overview of Exchange Server 2003 and antivirus software
http://support.microsoft.com/default.aspx?scid=kb;EN-US;823166
8. Run portquery and check whether port 102 is listening on both the servers.
HOW TO: Use Portqry to Troubleshoot Active Directory Connectivity Issues
http://support.microsoft.com/kb/816103/en-us
9. On Exchange server 2003, add black hole registry entry as follows according to the following article:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TCPIP
EnablePMTUBHDetect
EnablePMTUDiscovery
TCP/IP and NetBT configuration parameters for Windows 2000 or Windows NT
http://support.microsoft.com/kb/120642/en-us
10. Run mtacheck.exe /rd /rp /rl, and restart MTAStacks on Exchange 2003 server.
Followed XCON: Performing An MTACHECK
http://support.microsoft.com/kb/175495/en-us
XCON: How and Why to Run Mtacheck
http://support.microsoft.com/kb/163326/en-us
11. Run msconfig command and check whether you load third party tool such as Secure port scanner, if so, disable it, restart Exchange server and check the effect.
Hope it helps. If anything is unclear, please feel free to let me know.
Rock Wang - MSFT
