Blocking e-mail addresses in Outlook Express 6.0

1) Launch Outlook Express,2) Click on Tools menu, (Tools menu appears at the top of Outlook Express with File, Edit, Help etc menus)3) Select Message Rules,4) The select Blocked Senders List,5) You will get three tabs named: Mail Rules, News Rules, Blocked Senders6) Click on Blocked Senders tab,7) Select the name or message that you have blocked and click on Remove button, then click on Ok button.

Also please visit:

Article Title: OLEXP: How to Manage the Block Senders List in Outlook Express
http://support.microsoft.com/kb/267305

Note: Although this article applies to Outlook Express 5, you can follow the same steps for Outlook Express 6 to block the senders.

Article Title: Blocking Senders in Microsoft Outlook Express
http://its.truman.edu/documentation/index.asp?docId=136&audienceId=