[cid:Image68.png@147f9ea959a49] [http://exchangemaster.files.wordpress.com/2014/08/1.png]
OOF messages not being sent in Exchange 2013 CU5 Environment
Scenario Customer had a single server Exchange 2013 SP1 environment that had been migrated from Exchange 2003 over time (double hop migration). The customer installed CU5 & about a month later …

http://exchangemaster.wordpress.com/2014/08/21/oof-messages-not-being-sent-in-exchange-2013-cu5-environment/