E14 - RPCClientAccessServer
•Default – CAS Server •Each MailboxDatabase has a RpcClientAccessServer field . •This is the end point that mailboxes in those mailbox databases use to connect to the database. When a database fails over, that value doesn't change. The clients are still connecting through that endpoint. •If you can you want that endpoint to be an NLB Cas Array. There's no DNS record changing in your standard database failover. •The attribute gets set when you create mailbox database. •The attribute does not seem to get updated when a database is moved. •The attribute also does not get updated when the CAS server defined in that attribute is down or removed from the organization. Blog Extended Reading More Information & Reference 1. Exchange Server 2010 and RPCClientAccessServer Madness 2.