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DNS Black List

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Email Blacklist Check - See if your server is blacklisted. Open Relay Test. SORBS (Spam and Open-Relay Blocking System) Spam Links - dead dnsbls and rhsbls. Skip over navigation The DNSBLs on this page are either confirmed dead or presumed dead - you should no longer be using them.

Check the list of DNSBLs you have carefully against this list. The CBL. - Beware of cheap imitations. The Spamhaus Project.