Site addressing is generating incorrect SMTP address for "%g.%s.%m" in Exchange Server 5.5

Exchange Server 5.5 site addressing may generate incorrect Simple Mail Transfer Protocol (SMTP) addresses for "%g.%s.%m". If there are no given name (first name) and surname (last name) values entered, the SMTP address that results is "alias.alias", instead of "alias".

For more information about a similar problem that may occur in Microsoft Exchange 2000 Server, click the following article number to view the article in the Microsoft Knowledge Base:

This issue can occur because when a user has no last name, the alias is copied to the last name field in the recipient information structure before the recipient information is passed to the proxy generator.

To resolve this problem, obtain the latest service pack for Exchange Server 5.5. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Microsoft has confirmed that this is a problem in Microsoft Exchange Server version 5.5. This problem was first corrected in Exchange Server 5.5 Service Pack 4.