How to Unblock Mail in AOL
AOL Mail allows you block specific email addresses or domain names from your inbox. This is a good way of avoiding junk mail your spam filter misses or emails from individuals or companies whose correspondence you do not wish to read. If you add an address or a domain name to your block list by mistake, or if you have a change of heart about a sender you've blocked, it's a straightforward procedure to reverse the process and allow blocked mail back into your inbox.
Log into your AOL Mail account with your username and password.
Click on the "Settings" link in the top right corner of the window.
Select the "Spam settings" link in the left pane. You will be presented with a list of the email addresses and domain names you have added to your block list in the "Block mail from addresses I specify" under the "Sender filter" section.
Highlight any addresses and domain names you want to remove from the list individually, and then press "Delete" on your keyboard.
Click on "Save" in the top right corner of the window to save the changes you've made, and then click "Check mail" to return to your inbox.