I accidentally blocked someones email address today by clicking on the "message" & then "block sender" button & now cannot receive any more emails from that person!!! Can anyone tell me how to undo this?

Sam, if you have outlook express, try doing this:

From the menu at the top, select Tools / Message Rules / Blocked Senders List

Then highlight the name in question and click on Remove.

If you've received mail from that person in the meantime, it should be in your Deleted Items folder. Hope that helps! :)

Click Tools in Outlook Express, then blocked senders list, and then it will give you all the blocked senders and you can add or remove them from here! :D

thanks you two....you saved my bacon!!!