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Re: The anti-abuse rDNS check that FTP gave up

On Oct 5, 2011, at 1:49 PM, Alessandro Vesely wrote:

>> IMO, any time you're basing an abuse test on something that is
>> fundamentally irrelevant, it's of short-term value at best.  rDNS
>> is such a check.
> The most relevant obstacle seems to be caused by uncooperative network
> providers that don't set PTR RRs.

how about the uncooperative spam filters that reject legitimate mail for no good reason, like this one?