Tim-
There is a hotfix for this, I think for Exchange. The issue is that the Exchange 2000 RUS doesn't sense changes when Linked Value Replication is happening. The easiest solution is to introduce an Exchange 2003 server to run your RUS. Thanks, Brian Desmond [EMAIL PROTECTED] c - 312.731.3132 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mischler, Timothy J CTR USAF NASIC/SCNA Sent: Wednesday, November 22, 2006 11:27 AM To: activedir@mail.activedir.org Subject: [ActiveDir] [ActiveDIR] OT: Windows 2003 Forest Functional Level 2 while running Exchange 2000 Hello, I was wondering if anyone had any experience with changing their Windows 2003 Forest Functional Level to 2 (Windows Server forest level) while running Exchange 2000 (post SP3)? I've found some documentation stating the Exchange 2000 recipient update service does not replicate changes successfully in forest functional level 2 in a 2003 Active Directory. >From what I've read the best practice is to leave the Forest Functional Level on 0 (mixed level forest) until the Exchange 2000 server has been migrated to Exchange 2003. Any input is much appreciated. Tim