A handy trick I got to work the other day, a client wanted the Enable Mailbox Notification to come from their Help Desk and NOT the Vault Service Account, and who could blame them. Fairly easy to do, though some SE's doubted me, but finally I get to contribute instead of leaching off the knowledge of JW.
1) Give the VSA Send As rights to the Mailbox desired for notifications to come from
2) Open up the EnableMailboxMessage.msg in Outlook.
3) Go to View and enable the From: field
4) Add the desired mailbox to the From: field
5) Save message
This way your VSA won't be filling up with email questions from users. And for those wondering why the VSA is being mail enabled, EV9.0 needs it to be so you can set the throttling policy in Exchange 2010.
You can also add a BCC if you like, if you want to be notified of new EV mailbox activations. I'm sure if you're...