Enabling and disabling MAPI access

Yesterday I wrote about Simon Butler’s quest to prevent individual users from sending messages via MAPI. In related news, the Exchange team blog has a great post today explaining how Exchange 2003 SP2 gives us the ability to block individual users from using MAPI. The good news: because the MAPI blocking is added to the existing ProtocolSettings mechanism for blocking other protocols, you can use the same script to block or allow multiple protocols at once. The bad news: as with Simon’s original question, this method doesn’t stop existing connections; it only blocks new ones. Still, this is a valuable new capability to have.