It's a real shame that Microsoft dropped it on the floor, because Outlook.com itself is very nice. I even prefer it to Exchange, because it syncs better with O

It's a real shame that Microsoft dropped it on the floor, because Outlook.com itself is very nice. I even prefer it to Exchange, because it syncs better with Outlook. Outlook connects to Outlook.com using Exchange ActiveSync, a push protocol that sends changes out instantaneously. Outlook connects to Exchange using RPC-over-HTTP, using a cached model that delays the sync. Many an Outlook user has triaged a bunch of messages in Outlook, closed Outlook a bit too quickly, gone home for the day, and then discovered that none of the changes had made it to Exchange. This scenario simply doesn't happen with Outlook.com because Exchange ActiveSync is instant.