Hello Exchange Server community- We're running Exchange 2007 Enterprise SP3. End users have Outlook 2010. An Outlook user with the "Manager can update membership list" check box set on the distribution group in Active Directory adds a mailbox to the distribution group using the Outlook client- but their change is not immediately reflected in the group's membership in their Cached Exchange Mode client's copy of the Offline Address Book. Wondering if this is a bug or if we're doing something wrong? Thanks

What happens in OWA? Did you check in Outlook Online Mode? It should work fine, just taking time to update the OAB, well you can force your outlook to update the OAB.Gulab Prasad, My Blog | Z-Hire Employee Provisioning App