XCON: Configuring X.400 Connector between Two Exchange Servers

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1. Can each server can ping the IP address of the other?
   No - Resolve network issue.
   Yes - If you want to use the server name versus the ip address proceed to step 2, otherwise proceed to step 3.
2. If the server name will be used in lieu of the IP address of the target MTA, ping the server name. Note: DNS will support server name resolution or a lmhosts or hosts file may be used. The lmhosts and hosts files are located in the 'winntdir'\system32\drivers\etc directory. The form for a lmhosts file is ip address, tab, server name, tab, #PRE, and a tab followed by a #DOM:domain_name if the server is a domain controller. The format for a hosts file is IP address, a tab, and then the server name.
   
   Did the server name return an ip address?
   No - Resolve problem with name resolution.
   Yes - Proceed to step 3.
3. Have the administrator configuring a given MTA record the following information for the MTA to which they desire to connect.
   
   Remote Server name: This entry is not case sensitive and may not exceed 32 characters in length. This entry is the name of the NT server where the target Microsoft Exchange Server is installed.
   
   Remote MTA password: This entry is case sensitive and may not exceed a length of 64 characters. If the other MTA has a password, you must enter it here.
   
   For the simplest configuration, select the defaults, which is no password.
4. T selector: This value is optional. This value is specified on the Outgoing OSI address information of the Stack tab. The value cannot exceed 32 text characters (64 HEX characters). By default, Microsoft Exchange uses the value(s) specified in the Outgoing OSI address information for the value(s) in the Incoming OSI address information. If a T selector is used, it is critical that the value be an exact match with the corresponding value specified for the T selector on the target Microsoft Exchange Server. If the remote admin wants to specify a S selector and/or a P Selector, this should be done after successful messaging has been established. The T, S, and P selectors are supported between Microsoft Exchange Servers.
5. Use the Overide tab to specify the Local MTA and Password. The MTA will use the name of the NT server on which Microsoft Exchange Server is installed for the MTA name. If no incoming password is desired, use of the Override Tab is unnecessary. Using a password is redundant because the T selector provides adequate security.
6. Use the Connected Sites tab to configure the address space that will be associated with the target Microsoft Exchange Server. The Address Space tab should only be used on a Microsoft Exchange Server that connects to a foreign MTA.
   
   Start the Microsoft Exchange Administrator program and select the Configuration object. Highlight the Site Addressing object in the right-hand window and double-click it. Select the Routing tab and click Recalculate Routing. This ensures that the routing table for the Site reflects current changes.
7. The information on the Advanced tab of the X.400 Connector should not require modification.
8. Make a custom recipient on both Servers or send a message to a user on the foreign server using a 1-off address in the To: line.
   
   Example of 1-off:

      [x400:c=us;a=attmail;p=organization;o=locale;s=lastname;g=firstname]
    
   						

9. If the above test fails in either direction, highlight the Server object in the Microsoft Exchange Administrator program. With the Server object highlighted, open the File menu and select the Properties option. Select the Diagnostics Logging tab and increase the MSExchangeMTA X.400, Interoperablility, and APDU logging to Medium. This will result in increased logging to the Bf0.log, Ev0.log and Ap0.log in the MTADATA directory.
10. Repeat the send mail testing.