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Email blacklist checker: is my IP or domain on a spam list?

Check if your mail server IP or domain is listed on spam blocklists such as Spamhaus, SpamCop, Barracuda, SURBL and URIBL. A listing sends your emails to spam; follow the simple steps to get removed.

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How to use this tool

  1. Enter IP or domain Type your mail server IP, your domain, or an email address.
  2. Click Check We look it up on major blocklists.
  3. See the result Listed or not listed on each blocklist.
  4. Find the cause A hacked mailbox or spammy form is the usual reason.
  5. Request removal Fix the cause, then use each list’s own removal page.

Stay off lists

  • Use SPF, DKIM and DMARC.
  • Never buy email lists.
  • Add captcha to website forms.

If listed

  • Fix the cause before asking for removal.
  • Spamhaus and SpamCop listings matter most.
  • Shared hosting IPs can be listed because of other users.

Watch regularly

  • Check monthly and after a bounce spike.
  • Read DMARC reports for unknown senders.
  • Use a good email provider for bulk mail.

Questions about this tool

Why is my IP listed if I did nothing wrong?

On shared hosting, another user on the same IP may have sent spam. Ask your host or use a dedicated email service.

How long does removal take?

Usually a few hours to two days after the cause is fixed.

Do I need to pay for removal?

Major lists are free to delist. Be careful with sites asking for payment.

Why does it show an example?

Blocklists require checks from our own server, which goes live after launch.

What is the difference between IP and domain lists?

IP lists check the server that sends; domain lists check links inside your emails.