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IntoDNS.ai

Deterministic DNS and email security analysis with AI-assisted explanations where available. Built for developers, sysadmins and security-conscious teams.

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IntoDNS.AI
HomeToolsBlacklist Check
Free Email Blacklist Check

Email Blacklist Check

Check if your IP address or domain is listed on email blacklists. Instant lookup across 40+ DNSBLs including Spamhaus, SpamCop, Barracuda, SORBS, UCEPROTECT and more.

Real-time lookup
40+ DNSBLs
Removal links

Check IP or Domain

Enter an IP address for direct DNSBL lookup, or a domain to check all mail servers

What we check

Spamhaus (ZEN, SBL, XBL, PBL)
SpamCop BL
Barracuda RBL
SORBS, UCEPROTECT (L1-L3)
PSBL, Lashback UBL, Sender Score
BlockList.de, SURBL, SpamEatingMonkey
And 20+ more DNSBLs

Why it matters

Email blacklists (DNSBLs) are used by mail servers to block spam. If your IP or domain is blacklisted:

  • Your emails won't be delivered
  • Deliverability drops drastically
  • Your domain reputation gets damaged

More Email Security Tools

Email Deliverability TestSPF Setup GuideFull Domain Scan