If you want to POP your Yahoo! Mail into Outlook 2002 or 2003, here's how:

1. From the Tools menu, select "Email Accounts."
2. Select the radio button next to "Add a new email account" and click the "Next" button.
3. Select the radio button next to "POP3" and click the "Next" button.
4. Enter the following information:
User Information

• Your Name: Enter your name as you'd like it to appear in the "From" field of your outgoing messages.
• Email Address: Enter your full Yahoo! Mail address (for example, "user@yahoo.co.uk").
Server Information

• Incoming mail server (POP3): pop.mail.yahoo.co.uk
• Outgoing mail server (SMTP): smtp.mail.yahoo.co.uk
Login Information

• User Name: Enter your Yahoo! ID (your email address without the "@yahoo.com").
• Password: Enter your Yahoo! password.
5. Do not check the box next to "Log on using Secure Password Authentication (SPA)."
6. Click the "More Settings" box and select the "Outgoing Server" tab.
7. Check the box next to "My outgoing server (SMTP) requires authentication."
8. If you'd like to keep a copy of your email messages on the Yahoo! Mail server, click the "Advanced" tab. Check the box next to "Leave a copy of messages on the server." If you want to delete your messages from the Yahoo! Mail server after viewing them in Outlook, don't check the box.
9. Click the "OK" button.
10. Click the "Next" button on the Email Account Wizard, then click "Finished."

Important: The Yahoo! Mail SMTP server requires authentication. To turn this setting on, follow these steps:

1. Click "Tools," then select "Email Accounts."
2. Select "View or change existing email accounts" and click "Next."
3. Select your Yahoo! Mail account and click the "Change" button on the right.
4. Click the "More Settings" button in the lower-right corner of the Email Accounts window.
5. In the Internet Email Settings window, click the "Outgoing Server" tab. Ensure that the box is checked next to "My outgoing server (SMTP) requires authentication."
6. Click the "Advanced" tab and ensure that you have not selected "This server requires a secure connection (SSL)" under the incoming (POP3) or outgoing (SMTP) port settings.

If you're unable to send email, try using port 587 when sending via Yahoo!'s SMTP server. Here's how you can make this change:

1. From the "Tools" menu, select "E-mail Accounts."
2. Select "View or Change existing email accounts" and click "Next."
3. Select your Yahoo! POP account and click the "Change" button.
4. Next, click "More Settings."
5. Click the "Advanced" tab.
6. Next to "Outgoing server (SMTP)," change port 25 to 587.
7. Click "OK," then click "Next" and "Finish."