Re: configure postfix to do reverse dns and do not accept ma…

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Author: Jim B
Date:  
To: Main PLUG discussion list
Subject: Re: configure postfix to do reverse dns and do not accept mail if revers dns fails
Currently the mail gateway has plenty of resources and if the mail takes a
few seconds longer but it helps to get rid of some potential spam that would
be fine with me.


Jim

On 8/17/05, Alex Dean <> wrote:
>
> I'm not sure about your specific question, but won't doing a DNS lookup
> for every incoming email cause a big performance hit? Just curious -
> I'm trying to learn more about mail systems myself.
>
> alex
>
> Jim B wrote:
>
> > How can postfix be configured so that postfix will do a reverse dns on
> > incoming mail and if it fails then the mail will not be accepted or
> > will be discarded?
> >
> >
> > Jim
> >
> >
> >
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