Recently a few DNSBL services are flagging emails coming from my server as blacklisted therefore receipt to intended email recipients have been blocked.
One service explicitly stated that IT WAS NOT MY SPECIFIC ip-address that was blocked, but the ip range from which the email originated (I assume 174.138.1.*) and that I should contact the administrators (in a very critical manner) for that ip range to establish what - if anything - they are doing to remove “innocent” servers from the blacklists while preventing the few abusers using your services to spam etc etc.
So here we are!
Your comments would be very much appreciated.
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