Block a sender

1. In the message list, select a message from the sender whom you want to block.

2. On the Home tab, click Junk, and then click Block Sender.

Outlook adds the sender's e-mail address to the blocked senders list.

Unblock a sender

1. On the Tools menu, click Junk E-mail Protection.

2. On the Blocked Senders tab, in the Blocked Senders text … Read more