How to enable spam protection in cPanel

Updated: 28 September 2026 · Applies to: cPanel & WHM 138 (Jupiter theme)

cPanel's Spam Filters use Apache SpamAssassin to give every incoming message a spam score. You decide what happens above a certain score.

Turn on spam filtering

1. Log in to cPanel (for example at https://yourdomain.com:2083, or from the Ucartz client area).
2. Open Email › Spam Filters.
3. Switch on Process New Emails and Mark them as Spam. Spam gets ***SPAM*** added to the subject.
4. Optionally switch on Move New Spam to a Separate Folder (Spam Box), so spam goes to a spam folder instead of your inbox.
5. Optionally switch on Automatically Delete New Spam (Auto-Delete) and choose a score. Use a high score, such as 8 or more, so real mail is not deleted.

Fine-tune it

• Spam Threshold Score: lower scores catch more spam but also more good mail. The default of 5 suits most mailboxes.
• Whitelist (Emails the filter should always allow): add senders that are wrongly marked.
• Blacklist (Emails the filter should always mark as spam): add persistent spammers.

For strict protection you can also use Email › BoxTrapper, which holds mail from unknown senders until they confirm they are human.