cPanel’s Spam Filters assess incoming messages and can mark, move or delete suspected spam. Start by retaining messages so you can check for genuine mail that has been misclassified.
Enable filtering
- Open Email > Spam Filters in cPanel.
- Enable Process New Emails and Mark them as Spam.
- Enable Move New Spam to a Separate Folder (Spam Box) if available.
Enabling assessment alone does not automatically move messages to a separate folder.
Adjust the threshold
Click Spam Threshold Score, choose a value and click Update Scoring Options. A lower threshold marks more messages, including potentially genuine ones. Scores are not limited to a scale out of ten.
Review the spam folder before changing the threshold again. Its contents still consume mailbox storage.
Review allowed and blocked senders
Under Additional Configurations, use the whitelist or blacklist settings to add intended addresses and save the changes. *@example.com matches a whole domain.
Use broad exceptions carefully because sender addresses can be forged.
Consider automatic deletion
Auto-Delete permanently removes messages meeting its separate deletion threshold. This can include genuine mail. Review retained spam before enabling it.
Check Configure Auto-Delete Settings rather than assuming the marking and deletion thresholds are the same.