All blacklists
Spamhaus Project
Spamhaus DBL
Domain-based block list for URLs and sender domains used in spam, phishing, and malware.
- DNS zone
dbl.spamhaus.org- Target
- Domains / URIs
- Severity
- high
What it lists
The Domain Block List (DBL) flags domains observed in spam content, phishing, malware command-and-control, and abusive registrations. It is checked against both the envelope sender domain and URLs in message bodies.
Who gets listed
Domains found in spam URLs, phishing infrastructure, malware C2, and newly registered domains used for abuse.
Reputation impact
Severe. DBL hits on either the From domain or links in your message commonly cause outright rejection.
How to delist
Stop the abusive use, clean compromised pages, secure the domain account, and submit a DBL removal request describing the remediation.
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