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

Weird Outlook Issue

Interactions between email servers and clients are governed by email protocols. The three most common email protocols are POP, IMAP and MAPI. Most email software operates under one of these (and many products support more than one).  The correct protocol must be selected, and correctly configured, if you want your email account to work.

Email Protocols

Windows Vista is an operating system created by Microsoft as the successor to Windows XP. It was intended for PCs, workstations and laptops, and shares the same code base as its successor, Windows 7. New features included an updated graphical user interface (GUI) and visual style dubbed Aero, a new search component called Windows Search, redesigned networking, audio, print and display subsystems, and new multimedia tools. Vista aimed to increase the level of communication between machines on a home network, using peer-to-peer technology to simplify sharing files and media between computers and devices. Windows Vista included version 3.0 of the .NET Framework, allowing software developers to write applications without traditional Windows APIs.

Windows Vista

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.