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The Daily Insight

What is Spamhaus DROP list?

Author

Matthew Barrera

Updated on April 04, 2026

The Spamhaus DROP Lists are advisory “drop all traffic” lists, consisting of net-blocks that are “hijacked” or leased by professional spam or cyber-crime operations (used for dissemination of malware, trojan downloaders, botnet controllers).

How do I get off Spamhaus list?

Ready to remove your IP from the Spamhaus Blacklist?

  1. Check your IP at the Blocklist Removal Center.
  2. Discover why your IP is on the block list.
  3. Complete the Spamhaus Blacklist Removal Form.
  4. Verify Blacklist Removal.
  5. Summary.

How do I remove my IP from Spamhaus blacklist?

You can not remove an IP address that is also listed in another Spamhaus database (such as SBL or XBL) due to other existing spam issues. You can not remove an IP address that has been set to ‘non-removable’ by your ISP. In this case you need to contact your ISP to resolve the issue.

Why am I on Spamhaus?

Why Was My IP Address Blocklisted On Spamhaus? When an IP is noticeably sending spam, they are listed on blocklists, otherwise known as DNSBLs. These blocklists protect email users from opening potentially harmful spam sent from IP addresses displaying suspicious activity.

Is it not a route or peer?

Don’t Route Or Peer (DROP) is an advisory “drop all traffic” list. DROP is a tiny subset of the SBL which is designed for use by firewalls and routing equipment. The DROP list will not include any IP space allocated to a legitimate network and then reassigned – even if reassigned to confirmed spammers.

Is Spamhaus genuine?

Spamhaus is an international blacklist organization founded in Europe in 1998. Spamhaus distributes six DNS-based (DNSBL’s) blacklists and one domain-based blacklist. The key blacklists Spamhaus manages include ZEN, BCL, XBL, SBL, PBL, and DBL.

What is Spamhaus PBL?

The Spamhaus PBL is a DNSBL database of end-user IP address ranges which should not be delivering unauthenticated SMTP email to any Internet mail server except those provided for specifically by an ISP for that customer’s use.

Is Spamhaus legitimate?

What is PBL Spamhaus?

Is Spamhaus safe?

Spamhaus presently protects over 1.9 billion email users’ mailboxes. Spamhaus distributes six DNS-based (DNSBL’s) blacklists and one domain-based blacklist. The key blacklists Spamhaus manages include ZEN, BCL, XBL, SBL, PBL, and DBL. Probably the most common Spamhaus listing is the ZEN blacklist.

Does Microsoft use Spamhaus?

I searched through many Microsoft articles but but none of them says about any RBL, but suddenly I came across a smtp response, which clarified that Microsoft is certainly using services of spamhaus. Hence their sender.office.com is using spamhaus in backend.

Is Spamhaus org legitimate?