Update 7/13/2011: Exchange 2010 SP1 RU4 has been removed. See Exchange 2010 SP1 RU4 Removed from Download Center for details.
Earlier today the Exchange CXP team released Update Rollup 4 for Ex...
Updated Jul 01, 2019
Version 2.0
Blog Post
@Jingping
our current environment is mixed 2010/2007/2003. Public folder stores with mail enabled folders exist in 2007 + 2010.
E2010 SP1 RU3-v3 with currently 9 Boxes: 4 CAS, 2 HT, 3 MBX. After applying RU4 to all CAS and one HT, every mail for public folders ends with the above mentioned NDR, whether it is intended for E2007 or E2010 public folder. Today I recognized, that even the public folder replication messages (hierarchy + content) which have been routed through the RU4 HT, haven't been delivered to and from E2010
.
If I disable the HT service on the RU4 box, which means, mail gets routed over the RU3-v3 box, everything's fine.
We stopped deploying RU4 (especially MBX) until this issue is fixed and opened a support case.