🚫 SURBL Multi
Guide to the SURBL domain blocklist: what return codes mean and how to delist a domain from SURBL Multi.
ℹ️ About This Blocklist
SURBL (Spam URI Realtime Blocklist) lists domains that appear as links in spam messages. The "multi" zone aggregates data from all SURBL sub-lists. SURBL focuses on the URLs inside spam, not the sending IP.
What a Listing Means
Your domain has appeared as a link in spam messages tracked by SURBL's data sources.
🔢 DNSBL Return Codes
When listed, the DNSBL returns one of these 127.x.x.x addresses. The specific code indicates the reason for the listing.
| Return IP | Meaning |
|---|---|
| 127.0.0.8 | Listed in Phishing (PH) list |
| 127.0.0.16 | Listed in Malware (MW) list |
| 127.0.0.64 | Listed in Abuse (AB) list |
| 127.0.0.128 | Listed in CR extra list |
✅ How to Request Delisting
Check the SURBL lookup to confirm the reason. For compromised sites, clean the malware/spam content first, then submit a delisting request via the SURBL portal.
Request Removal from SURBL Multi ↗📚 Official Documentation
🔍 Check Your IP or Domain Against SURBL Multi
Run a live blacklist check against all 17 blocklists we monitor, including SURBL Multi.