The solution web hosts offer for webmail protection is called SpamAssasin.
Spam Assassin is an automated mail filter that uses a wide range of heuristic algorithms on mail headers and message body text to identify "SPAM" (unsolicited email). This software is capable of eliminating more than 98% of all SPAM messages. Its performance depends on the individual configuration, which can be tuned by each website owner. Once identified, the mail is tagged as "SPAM" for later filtering using the user's desktop mail client.
For more information, please visit the SpamAssassin developer's website.
To configure your SpamAssassin, please follow the steps below:
Step 1: To access the Mail Menu, click on the icon above the words Mail on the main screen of your cPanel interface.
Step 2: To enable Spam Assassin, click on Enable Spam Assassin.
Step 3: To disable Spam Assassin, click on Disable Spam Assassin.
Step 4: To enable Spam Box, click on Enable Spam Box.
Step 5: To enable Spam Box, click on Disable Spam Box.
Step 6: To configure Spam Assassin, click on Configure Spam Assassin.