- The issue can occur because of an invalid or third-party e-mail address
generator. When the System Attendant starts, it attempts to load an address
generation dynamic-link library (DLL) file for each address type that the
Recipient Update Service (RUS) is responsible for stamping. If the System
Attendant is unable to load the DLL for any address type, the RUS fails to
stamp any e-mail addresses and logs an 8231 event in the application log.
- In a scenario where the Mailboxes are on an Exchange 2000 Server in one
domain (say, DOMAINA) and the user accounts are home in another domain
(say, DOMAINB), this issue can occur if DNS name resolution between the
Exchange 2000 server that is running the RUS and the target domain controller
in the remote domain (DOMAINB) is malfunctioning; or if the NetBIOS
Name for the DC in the remote domain is not resolvable by the Exchange 2000
- In an environment where there are multiple DCs involved, ensure that the
DCs/GCs are synchronized before attempting a rebuild of the RUS.