Mailing List Message #106538
From: Gib Henry <>
Subject: Re: Blacklist by DNS Name
Date: Fri, 18 Aug 2017 16:16:06 -0500
To: CommuniGate Pro Discussions <>

And I’ll just bet that it does not have a PTR!  Thanks for the insight.  Cheers,

On 8/18/17 1:39 PM, Technical Support wrote:

On 2017-08-17 15:48 , Gib Henry wrote:
In “Blacklisted IPs/Detect Blacklisted by DNS Name,” I have blacklisted ‘*.faith’. However, it appears not to be working:

16:04:11.507 2 SMTPI-001214( [3010919] received, 7832 bytes

I also tried ‘*.*.faith’ but that doesn’t work either.  Am I missing something?  Cheers,
The above log record means that resolved to the IP from which teh connection was made, but that does not guarantee the reverse: that PTR record for the source IP resolves to that host name, which is necessary for blocking by DNS name.
Gib Henry

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