Note    This article applies to the Corporate or Workgroup version of Outlook 2000. Information about troubleshooting using the Microsoft Network (MSN™) with the Internet Mail Only version of Outlook.

If you're having problems using MSN with Outlook 2000, here are the most common causes and their solutions.

Outlook 2000 requires MSN version 2.5 or later

To use MSN with Outlook 2000, you must have MSN version 2.5 or later. Outlook 2000 doesn't support MSN versions 2.0 and earlier. Trying to use a version of MSN earlier than 2.5 will result in problems.

If you have MSN 2.5 or later and can't send or receive e-mail, try the following:

Check your e-mail server settings

1. In Outlook, on the Tools menu, click Services. Click Internet e-mail, and then click Properties.
2. Click the Servers tab, and then check the entries in the Incoming Mail (Pop3) and Outgoing mail (SMTP) boxes. They should be in lowercase letters and should match the table below.

   Incoming mail (Pop3)	Outgoing mail (SMTP)
   pop3.email.msn.com	smtp.email.msn.com

    Note   If you gain access to MSN through a third-party Internet service provider (ISP) or local area network (LAN), and MSN is not working, type secure.smtp.email.msn.com in the Outgoing Mail (SMTP) box.

If your e-mail server settings are not causing the problem, try one or more of the following, as appropriate:

If you are on a LAN, check your proxy settings

If you use MSN on a corporate network, contact your network administrator for the correct proxy settings for your LAN.

Check that your e-mail has been migrated to the MSN POP3/SMTP servers

If you're upgrading to MSN version 2.5 or later from an earlier version of MSN, check to see if your e-mail account has been migrated.

1. Go to the MSN Address Book.
2. Type your e-mail name in the E-mail name box, and then click Search.
   If the return contains @email.msn.com, the e-mail account has been migrated and can use POP3/SMTP.

   If the return contains @msn.com, the e-mail account hasn't been migrated. If this is the case, and if the incoming mail server is set to pop3.email.msn.com, you won't be able to log on. Migrate your MSN e-mail account to the POP3/SMTP servers.

Set or check Secure Password Authentication

If you can receive e-mail in Microsoft Outlook Express, but not in Outlook, try the following:

1. In Outlook, on the Tools menu, click Services. Click Internet e-mail, and then click Properties.
2. Click the Servers tab, and then click Log on using Secure Password Authentication.

For this setting to take effect, you must quit and restart Outlook.

Check the Microsoft Help and Support Web site for more information

The Microsoft Help and Support Web site offers in-depth online troubleshooting for all Microsoft Office programs.