A message stays in the Outbox, and the message is resent until it is deleted manually on Windows Mobile 6.1-based devices in an Exchange 2007 Service Pack 1 CAS proxying scenario

In a Microsoft Exchange Server 2007 Service Pack 1 (SP1) Client Access Server (CAS) proxying scenario, users who use Windows Mobile 6.1 devices to send or reply to messages may receive a blank page. After the blank page is dismissed, the message stays in the Outbox. And, the message is resent every time that the device is synced until the message is deleted manually from the Outbox.

To resolve this problem, download and install Update Rollup 5 for Exchange Server 2007 Service Pack 1.

For more information about Update Rollup 5 for Exchange Server 2007 Service Pack 1, see the following Exchange Help topic: For more information about how to obtain the latest Exchange service pack or update rollup, see the following Exchange Help topic:

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

For more information about CAS proxying, visit the following Microsoft Web site: