1. Check which list you're on

Spamhaus runs several lists, and each is removed differently. Run your sending IP address and your domain through our blacklist checker. It asks Spamhaus directly and shows which list matched, along with 15 other blocklists.

Not sure what your sending IP is? Open an email you sent, view the original message or headers, and look for the first Received: line added by your provider. Our MX lookup shows the IPs of a domain's mail servers.

2. Understand what the listing means

  • SBL (Spamhaus Blocklist): addresses Spamhaus has seen sending spam or hosting spam operations. Usually needs your hosting provider or ISP to contact Spamhaus.
  • XBL / CSS (Exploits and Combined Spam Sources): the IP sent mail that looked like it came from a hacked computer, a compromised mailbox or a badly configured server. You can request removal yourself once the cause is fixed.
  • PBL (Policy Blocklist): not a punishment. It lists IP ranges that shouldn't send mail directly, like home internet connections. If you run a real mail server on a static IP, you can remove your IP yourself.
  • DBL (Domain Blocklist): your domain was found in spam, either sending it or linked from it.

3. Fix the cause first

Requesting removal without fixing the problem gets you listed again, and repeated listings take longer to clear. Common causes:

  • A compromised email account sending spam. Change passwords, turn on two-factor sign-in, and check for forwarding rules you didn't create.
  • Malware on a computer in your office network.
  • A website contact form or newsletter signup abused by bots. Add a CAPTCHA or double opt-in.
  • An open relay: a mail server that accepts mail from anyone. Our SMTP test shows how your server responds.
  • Sending to bought or old lists full of spam traps.

4. Request removal

Go to the Spamhaus removal page (check.spamhaus.org), look up the IP or domain, and follow the steps for that listing. XBL/CSS and PBL removals are usually instant. SBL listings are handled by Spamhaus with your provider; ask your host to open a ticket if you don't control the IP range.

Don't pay anyone who offers to remove a Spamhaus listing for a fee. Removal from Spamhaus is free.

5. Confirm and protect your reputation

Check again with the blacklist checker after removal. Then make sure your domain proves your mail is genuine: SPF and DMARC and DKIM should all pass. If you're starting again on a new IP or domain, follow a warmup plan instead of sending your full volume on day one.