Microsoft KB Archive/99393

= Mac Srv: Serial Number Conflicts and Routing =

Article ID: 99393

Article Last Modified on 10/30/2006

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APPLIES TO


 * Microsoft Mail for Appletalk Networks 3.0
 * Microsoft Mail for Appletalk Networks 3.1

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This article was previously published under Q99393



SYMPTOMS
It is possible to see inconsistent routing problems with versions 3.0 and 3.1 of Microsoft Mail for AppleTalk Networks. Symptoms for routing problems are the following:
 * Routing configurations suddenly defaults to &quot;No Connection&quot; in the Mail Network Administrator program.
 * User lists disappear from the All listing on one or more servers with no warning.



CAUSE
Two Microsoft Mail servers at different sites contain identical serial numbers. If a duplicate serial number server is inadvertently placed on a routed network, the following standard duplicate serial number message will NOT be displayed:

&quot;There is another copy of this Microsoft Mail Server active on your network. The server on this machine has been stopped.&quot;



RESOLUTION
Use Global Server Report feature from the Mail Network Administrator program to verify that all servers have a unique serial number. If two or more servers contain the same serial number, all but one must be removed and the existing users moved to another server. It is not possible to change the serial number of a mail server.

If data from the duplicate server must be maintained, use the Move User feature from version 3.1a of the Mail Network Administrator. With version 3.0 of Microsoft Mail, it is possible to duplicate user accounts on a second server and then forward mail messages to the new account. After all messages have been forwarded, the duplicate server can be removed from the network.

After the duplicate server has been removed, routing and user name propagation will return to normal.

Additional query words: 3.00 3.10 dropped

Keywords: KB99393

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