On Windows Mobile 6.0/6.1 with Pocket Outlook suddenly stops being able to send outgoing email with error message: “The message(s) could not be sent. Check that your have network coverage and that your account information is correct. Then try sending again.”
Microsoft came out with a fix for this on November 12th, 2008 which can be downloaded at http://www.microsoft.com/downloads/details.aspx?familyid=d9d71b2e-d2dd-44f2-86e5-1e53aad7fb7a&displaylang=en&t.
1) There are two options at the link above.
a) You can download the .msi file and install the patch on your PC which should theoretically install it on your mobile device if it is connected via USB while you are installing it.
b) Or there is the .cab file which should be downloaded from your Windows Mobile device directly, just send yourself an email with the above URL and use your device to download the .cab file and run it. (Recommended)
2) After install you must perform a soft reset on your device, just push the reset button with the stylus. NOTE: Some devices, such as my XV6800 appear to automatically reset after the patch is installed.
NOTE: Any old emails in your outbox will be immediately sent once the device is reset. Be sure to delete any old emails you don’t want going out from your “Outbox” folder.
Further details of the problem are also at the download link above.
All information should be valid for any Windows Mobile device, however I’ve tested this only on a Verizon XV6800.