Microsoft has recently released Exchange 2013 RTM Cumulative Update 3 or CU3 and an updated UM Language Pack, the last Cumulative Update before Exchange 2013 Service Pack 1.
Several new features have been added to the product: Continue reading Upgrade to Exchange Server 2013 RTM CU3
If you have a DAG with multiple Mailbox servers and a lot of Mailbox databases it’s a good practice to regularly have a look at the distribution of the Mailbox database.
When you reboot a Mailbox server for example all active copies of Mailbox databases are moved to other Mailbox server but they are never moved back to their original location.
Jaap Wesselius 