OS: Vista w/SP1
Application: MS Outlook 2002 w/SP1
When opening up Outlook, the user is prompted for a username & password, as if requesting the normal email login credentials when you don't save the password. Entering the password (regardless of if it is right or not) ends up with Outlook erroring out (unable to authenticate with the mail server). After this happens, if you click Send & Receive (assuming that you had previously saved the password) it goes through properly.
I have tried removing the email account, recreating it, ensuring that the password was saved properly, restarted Outlook, and I get the same problem.