Hi Milind: I know I can manually map full access and send as permissions to a non-owner of a user mailbox and give them "delegate" access. My question centered more on the fact that in Exchange 2003 there was a "button" that I could use to assign a user (or multiple users) as a delegate to a mailbox. From the virtual labs that I've run, I can't seem to find this 'button' in the GUI, I was trying to confirm that it really did go away. John M. From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Milind Naphade Sent: Sunday, June 10, 2012 10:01 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Mailbox Delegate in Exchange 2010 Full Mailbox Permissions and Send As permissions are one of the essential things in daily operations, I believe and they are still there in Exchange 2010 too. Take a look at http://technet.microsoft.com/en-us/library/bb676551.aspx This article should help you understand how to do it. - Milind Naphade On Sun, Jun 10, 2012 at 7:22 PM, John Matteson <john.matteson@xxxxxxxxx> wrote: Okay, dumb administrator question number 6,328. In Exchange 2003 (yes, I'm dating myself, but my last employer used 2003), an administrator could assign a user as a 'delegate' for their mailbox, giving them a subset of permissions, including a modified "send as" permission that let the delegate send messages "on behalf of". Did this go away in 2010? Or did it get rolled into the "full access" and "send as" mailbox permissions? Thanks. John Matteson