Overview
Spamhaus DBL (Domain Block List) works differently from ZEN β it checks domains rather than IP addresses. If a domain appears in spam message body links, sender addresses, or other key positions, it can end up on DBL.
For website operators, a DBL listing has impacts beyond email β some network security products also use DBL data to block access to malicious domains.
How It Works
Spamhaus extracts domain information from massive spam sample collections. DBL distinguishes between listing reasons: spam domains, phishing domains, malware distribution domains, and others, each with different return codes. Newly registered domains that quickly appear in large volumes of spam receive extra scrutiny.
How to Get Delisted
Check your domain status and submit a removal request at check.spamhaus.org. Spamhaus will review how the domain is being used. If the domain was hijacked rather than intentionally used for spam, explaining the situation usually leads to faster removal.
Also check that your WHOIS information is complete and your SPF/DKIM/DMARC records are properly configured.