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RE: The anti-abuse rDNS check that FTP gave up
Murray S. Kucherawy <msk@xxxxxxxxxxxxx> wrote:
> I generally agree, but implementing it on my small site with only a
> handful of users did lead to a number of false positive complaints that
> then needed to be handled.
I haven't deployed this check myself, but I understand that it is fairly
common for MXs to require the existence of reverse DNS but not require
that it is valid. For example AOL has done this for many years.
f.anthony.n.finch <dot@xxxxxxxx> http://dotat.at/
Lundy, Fastnet, Irish Sea, Shannon: Southwest veering west 5 to 7,
occasionally gale 8. Very rough or high in Shannon, otherwise moderate or
rough. Occasional rain then showers. Moderate or poor, becoming good.