Manage Sender Blacklist - Email Level
Incoming mail received from senders listed in the Sender Blacklist will always be rejected.
In the Email Level Control Panel, click on Incoming - Protection Settings > Sender blacklist.
The Sender Blacklist page is displayed.
Add Sender to Blacklist
You can add multiple senders to the blacklist by uploading a CSV file or you can add senders manually.
To add a sender manually:
Enter the Sender email address or domain in the Sender field and click on Add.