On Mar 4, 2014, at 9:48 AM, Doug Barton <do...@dougbarton.us> wrote:
> 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.


You mean except for all those filter rules that add points if your reverse DNS 
looks like a dynamic IP?  ;-)

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