The OP specifically said "anti-spam providers" in the context of "is
there a risk that the target domain could be blacklisted by anti-spam
providers?"
I am assuming that everyone here (including the OP) knows that specific
anti-spam solutions that you would run on your mail servers look for
valid PTRs, but that would seem to be a different thing entirely from
what the OP seems to be asking about.
... so I revert to my original point, which is that it's hard to answer
the OP's question intelligently without knowing more about what he's
asking.
Doug
On 03/04/2014 10:06 AM, [email protected] wrote:
Doug wrote on 03/04/2014 12:48:03 PM:
2. In my experience (which is not thorough, but also not zero) anti-spam
folks are completely uninterested in what's in the PTR, and generally do
not do any blacklisting by domain name in the sense you seem to mean.
Not exactly true. Many insist that there is a valid PTR record. Some
care that it has a valid name, and that the forward lookup for that name
matches.
RBLs however, only look at IP address.
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