Nguyen Dang Phuoc Dong writes:
> >Nope. There's very little value in doing this to prevent spam;
> >spammers will just split their messages up. Do you want to do it for
> >a different reason?
>
> So, what is the best way to prevent spam mail?
I presume you mean outgoing, since the preceding question was about
rate-limiting outgoing email. The best solution is 1) to prohibit
outgoing SMTP connections from your dialups, and 2) to rate-limit the
amount of mail sent through your host. The best way to do that
doesn't exist yet. I've got a customer who has me writing a
qmail-queue wrapper which will reject "too much" email from the same
host. It'll be configurable to either bounce the mail, or simply
defer it. Deferring it is by far the better solution. It really
knocks a hole in the dialup spammers, since they lose their account so
quickly that re-sending deferred email simply isn't an option. And
when using it on internal outgoing mail (from your own users), it's
the only option, since you don't want to deny service, just ensure
that your users can't spam.
--
-russ nelson <[EMAIL PROTECTED]> http://russnelson.com
Crynwr sells support for free software | PGPok | Government schools are so
521 Pleasant Valley Rd. | +1 315 268 1925 voice | bad that any rank amateur
Potsdam, NY 13676-3213 | +1 315 268 9201 FAX | can outdo them. Homeschool!
