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Spamhaus

The world leader in threat intelligence.

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Overview

The Spamhaus Project is an international non-profit organization that tracks spam and related cyber threats such as phishing, malware, and botnets. It provides real-time blocklists and data feeds that are used by a majority of the internet's mail servers, corporations, and security vendors to protect against malicious email and IP addresses.

✨ Key Features

  • IP Blocklists (SBL, XBL, PBL)
  • Domain Blocklists (DBL)
  • Real-time Data Feeds
  • Passive DNS Data
  • Botnet C&C Intelligence

🎯 Key Differentiators

  • Highly respected, non-profit organization with a long history
  • Extremely low false-positive rates
  • Widely used as a foundational data source for email and network security

Unique Value: Provides highly accurate and reliable reputation data that forms the first line of defense against a huge volume of internet threats.

🎯 Use Cases (3)

Email Security (Anti-spam/Anti-phishing) Network Security (Blocking malicious IPs) Threat Research

✅ Best For

  • Blocking spam and phishing emails at the mail gateway
  • Preventing connections to known malicious IP addresses
  • Enriching security alerts with IP and domain reputation data

💡 Check With Vendor

Verify these considerations match your specific requirements:

  • Organizations looking for strategic intelligence on threat actors

🏆 Alternatives

Proofpoint Barracuda Networks Abuse.ch

Considered the gold standard for reputation blocklists, with a strong focus on accuracy and minimal false positives.

💻 Platforms

API (DNS-based)

🔌 Integrations

Mail Servers (Postfix, Exchange, etc.) Firewalls SIEMs DNS Resolvers

🛟 Support Options

  • ✓ Email Support
  • ✓ Dedicated Support (Datafeed Query Service tier)

🔒 Compliance & Security

✓ GDPR

💰 Pricing

Contact for pricing
Free Tier Available

✓ 30-day free trial

Free tier: Free for non-commercial, low-volume use via public DNSBLs

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