Update to Real Time Blacklists
To 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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