Email blacklist checker
Check whether your mail server's IP is on Spamhaus, SpamCop, Barracuda or SORBS — the reason legitimate mail silently stops arriving.
Free · no signup · results are not stored
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- ✉ DMARC, SPF & DKIM checker
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- 🎣 Lookalike domain checker
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- ↪ Redirect chain checker
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- 🕸 Subdomain finder
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