Back in version 1.3 or 1.4, I was able to check off "Always Send Immediate" and Check "Efficient Sync" and my emails would not be sent until a quicksync was done. This has stopped working for me, and now when I click send on an email I've composed, it goes out immediately. Invariably, something occurs to me to add to the email right after I click send, and it is too late.