Reverse DNS question

Mark Tinka mark.tinka at
Wed Feb 19 09:45:15 UTC 2014

On Wednesday, February 19, 2014 11:01:53 AM Arthur Chance 

> Slightly changing the topic, does anyone have any idea
> how IPv6 is going to affect use of RDNS for spam
> prevention? Given that machines will often have multiple
> addresses, do we have to bolt down our MTAs to using
> specific publicly visible addresses, or is RDNS just
> going to get dropped. I don't have an IPv6 system to
> play with yet.

From a spam prevention perspective, nothing changes, 

My expectation is that mail server operators will require 
similar checks in IPv6.

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