The first step is to log into your email on the web.
Click Here or open your internet browser and enter mail.redred.com in the address bar. A window like the one below will appear.

Enter your full email address. Then enter your password and click the Login button. Now you should see a window similar to the one below.

On the left side of the window is a link called Spam Management. Click that link and the window will look similar to the following.

At the bottom of the page is a link called From: Blacklist. Click the icon to the right of this. A new window will pop up that looks similar to the following:

Type the address that you want “Black Listed” in the box labeled Enter new value. Then click the Add button. Any email sent to you from this address will now go directly to your "Quarantined Mail" by default.

Click the Close Window button.