As a footnote to this thread here is additional information.
Recently my godaddy outbound email stopped working without warning on my 800w. Inbound was not affected however. Changing server settings and port numbers produced no improvement.
Then I Found a patch for Windows Mobile 6.1 Hot Fix for Sending POP and IMAP E-mail servers here:
http://www.microsoft.com/downloads/d...displaylang=en
After insalling the cab file it will re-boot your phone.
Godaddy server settings are:
Incoming mail server: pop.secureserver.net
Outgoing mail server: smtpout.secureserver.net
use the "outgoing server requires authentication"
do not use the "outgoing server uses same user name and password for sending email"