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How to Block an Email Address in cPanel (Anti-Spam)

Surely you have had the need to block emails that come from a specific address. Possibly because they were Spam, and they bothered you...

Published: 30/06/2026 Updated: 13/07/2026

Introduction

If an address repeatedly sends you spam, you can block it from cPanel to reduce that spam and prevent it from continuing to reach your mailbox.

How to block an address in cPanel

  1. Access cPanel.
  2. Enter the spam filters or antispam settings section.
  3. Look for the blacklist, blacklist or the equivalent option.
  4. Add the email address you want to block.
  5. Save the changes.

When it is convenient to do it

  • If you receive annoying or repetitive messages from a specific sender.
  • If you have already identified that it is not a legitimate contact.
  • If it is not enough to mark the message as spam in the email client.

Useful tips

  • Block the exact address or, if applicable, the sender’s domain.
  • Check carefully that it is not a legitimate email before blocking it.
  • Keep the general anti-spam system active in addition to manual blocking.

Common problems

I keep receiving similar messages

The sender may change address. In that case, it is advisable to reinforce additional filters or rules.

I want to block only one sender, not all similar emails

Then use a specific rule for that specific account.

Conclusion

Blocking an email account in cPanel is a simple and useful measure when the problem comes from specific senders. If the volume of spam is larger, it should be combined with filters and email security review.