IntoDNS.ai
ScanFeatures
APIEmail TestBlog
IntoDNS.AI

The modern standard for DNS and email security analysis. AI-powered insights for developers and sysadmins.

Product

  • Free Scan
  • Features
  • API Access
  • Security Badge

Free Tools

  • SPF Generator
  • DMARC Generator
  • MTA-STS Generator
  • BIMI Generator
  • Blacklist Check
  • Email Tester

Resources

  • Blog
  • Learn Center
  • SPF Guide
  • DKIM Guide
  • DMARC Guide

Company

  • About Us
  • Compare Tools
  • Privacy Policy
  • Contact

© 2026 IntoDNS.AI. All rights reserved.

Powered by Claude AI · Deep scans via Internet.nl

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)
SpamRATS, PSBL, Lashback UBL
NiX Spam, BlockList.de, Abusix
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