If you wish to block all emails from a particular email address, log in to Roaring Penguin and follow the steps below.
1. Type the email address you wish to block in the box that appears under the Accept and Reject List heading.
2. Choose the Always reject mail from… option from the drop-down menu and click the Add button.
Note: After blocking an email address, you will no longer receive emails from that person. Emails from blocked email addresses will not show up in your quarantine. The sender will instead receive a bounce back message stating that they are on a blacklist.