Author: Chris Meadors Date: To: Exim Subject: Re: [Exim] Final Peer Review Sought: "Spam Filtering for MXs" HOWTO
On Mon, 2004-07-12 at 20:48 +0100, Peter Bowyer wrote: > Tor Slettnes <tor@???> wrote:
> > It is true that sender callouts are of limited use, since they only
> > verify the validity, not the authenticity of the sender address. But
> > out of curiosity, what is the issue/why are these sites being annoyed
> > by the callout attempt?
>
> If your domain is the victim of a joe-job, a storm of sender callouts is
> indistinguishable from a storm of bounces.
But potentially more friendly, as there is no DATA, just a few lines of
SMTP dialog, and the results are cached.
I wish people would do callouts against my domains before accepting
mail.
