RE: [exim] Reducing load vs seeing all the spam

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Autor: Mark Smith
Datum:  
To: 'Exim User's Mailing List'
Betreff: RE: [exim] Reducing load vs seeing all the spam
> > > I'm assuming you're mistaken -- there must be a way to whitelist
> > > against RBL checks no matter where in the transaction the
> check is done.
> >
> > If you've come up with some way of checking the envelope sender at
> > connect time, I'd be very interested to hear it.
>
> RBLs aren't about envelope sender addresses -- they're about
> the client IP address.
>
> Unless you're thinking of basing your whitelist on the sender
> address, which would be a really stupid idea in my estimation
> since that's just as easily forged.
>
> --


One example is a third-party mailing list provider that seems to send out
nothing but spam, except for one particular mailing list that we need to
accept. In this case, the only way to distinguish between the spam and the
mail we want is not even the sender address, but the From: header.