I have a Treo 700w connected to an Exchange 2003 server. The Treo is set up to receive messages "As they arrive" both on and off peak, and the "Send outgoing mail immediately" box *IS* checked. The Exchange server is set up for direct push, and I receive emails on my Treo nearly instantly (in many cases before they show up in Outlook).

However, whenever I compose a new email and press "Send" the email just sits in the outbox folder on the Treo until either an incoming message arrives from the Exchange server or I manually initiate an ActiveSync.

This issue is driving me nuts, anyone have an idea how to fix it?