Outlook Express

Outlook Express Email Settings

Open Outlook Express

Click on Tools

Click on Accounts

Select the Mail tab

Select the mail account and click on the Properties button

Select the General tab

Verify the E-mail and Reply to addresses.

Select the Servers tab

Verify the Servers, Login name and Password.

Click on OK

Click on Close

If you need to check the other tabs, here's ya go:
Advanced
Connection: Sets up the dialer to use
Security
Advanced: Option for server timeouts
Options
: Click on Tools and Options to get here
General: Setting to check mail more frequently
Send
Read
Spelling
Security: Not the same as above
Dialup: Options for auto dial
Advanced