----- Original Message -----
From: "John W. Baxter" <jwblist@???>
To: <exim-users@???>
Sent: Tuesday, March 22, 2005 11:59
Subject: Re: [exim] Heads up?
> On 3/22/2005 8:16, "Tony Finch" <dot@???> wrote:
>
> > On Tue, 22 Mar 2005, Ken Lowther wrote:
> >
> >> http://www.alphaworks.ibm.com/tech/fairuce
> >
> > Challenge/response systems are a recipe for losing desirable email.
>
Challenge-response systems (such as TMDA) are the reason that
our spam load has been cut down by 95%. I highly recommend systems
like this.
If the sender gets one of these "challenge" messages, he just needs to
let the recipient know "hey -put me on your whitelist".
Works like a charm.