Update to Real Time Blacklists

April 09, 2014
JNH Solutions

fight spamTo better fight spam, JNH Solutions has implemented more real time blacklists. The blacklists that are checked before mail is delivered are:

  • zen.spamhaus.org
  • b.barracudacentral.org
  • psbl.surriel.com
  • bl.spamcop.net
  • cbl.abuseat.org
  • dnsbl.sorbs.net
  • combined.rbl.msrbl.net
  • spam.spamrats.com

To prevent any false positives, three of these RBL’s must be hit to reject the email.

We also use a Bayesian filter that will reject mail with high spam probability scores.

If you are a JNH Solutions client and are having trouble receiving email from someone that has managed to get themselves on a blacklist, please contact us and we can allow them a temporary inclusion until their mail server is removed from all blacklists.

So how do you know if your email server is on a blacklist? Check out MX Toolbox to see if your mail is being blocked.

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