[Mimedefang] Reverse DNS Testing

[Lucas Albers]

I do reverse dns and dns valid lookup, in my sendmail configuration.
I don't get any false positives.
I get approximatelly 1 complaint in every 25,000 messages.
I guess it depends on your situation!...
--Luke
MSU Computer Science,Bozeman MT.

>
>> Has anyone here tried setting up MIMEDefang to enforce reverse DNS
>> entries
>> for the MAIL FROM: domain, and/or the $RelayAddr? Any thoughts on if
>> this
>> causes a lot of legitimate mail to be blocked?
>
> It would cause a lot of legitimate mail to be blocked.
>
> But we give 2 points for no rDNS in Spamassassin.
>
> Joseph Brennan          Columbia University in the City of New York
> postmaster at columbia.edu                 Academic Technologies Group