Forum Discussion
vineyard_166933
Nimbostratus
Strange this, feels like OA should break every time implementing RPC/MAPI from Exchange iApp.
Since LTM rejects all unspecified ports natively, and Outlook Anywhere sends RPC traffic to the RPC/Mapi VIP on 6001-6004 port range.
OA will proxy traffic to DNS name specified in the Exchange RPCCLIENTACCESSSERVER property. And by recommendations the property points to the RPC/Mapi VIPs DNS name.
mikeshimkus_111
Dec 05, 2014Historic F5 Account
I recommend opening a case with F5 support, and letting us know the case number. Support will ask you to provide your fiddler captures or tcpdumps that should help us understand what's going on.
You are definitely using Outlook Anywhere. IIRC, the RPC endpoint information is used for internal communications between the CAS and mailbox servers. Are you pointing the CAS array FQDN at the LTM virtual server?