Of USN Rollbacks and Active Directory Replication Issues

posted by  jhorra (5)  12 months ago (blogs.msdn.com)

I recently worked on an interesting issue where certain Distribution Groups (DGs) in the Active Directory (AD) were not replicating properly with the Exchange 5.5 Directory Service (DS).  After adding several members to a DG in the AD, the changes did not replicate to the 5.5 server.  One particularly problematic DG, lets call it Execs, had 58 members in AD and only 23 in the 5.5 DS, even after several rep