[LINK] Solution to SPAM checking

[Craig Sanders]

On Wed, Jan 31, 2007 at 09:53:52PM +1100, Adam Todd wrote:
> I don't know why I haven't thought of this before, years before.  Maybe it 

because you're a feeble-brained cretin who has "brilliant" ideas years
after they've been tried and discarded by everyone else.

> If the RX SMTP server were to check the path of incoming mail or even
> connect to the "reply address" to ensure that it was legitimate and
> valid and was in fact related to the DNS records for the originating
> domain, then SPAM would vanish over night.

as usual, you are wrong and you are years behind. this was thought of
many years ago (e.g. postfix has had a sender-verification option for
years, as has sendmail and exim and others). and no, spam DIDN'T vanish
overnight. that's because spam isn't a simple problem amenable to simple
solutions.

it's also completely useless on very busy mail servers because they're
already struggling under the load of receiving and delivering actual
mail, let alone making an extra outbound SMTP connection for every
incoming message (even caching the result of the Sender address lookup
doesn't help much). so, it's vaguely useful on small, lightly-loaded
mail servers. which hardly makes a dent (if at all) on the spam volume.


please shut the hell up about things you don't understand. or at least
do some bloody research before opening your mouth. your childish
fumblings at understanding are annoying.


craig


PS: and stop inflicting your idiotic legal and personal battles on LINK.
start your own damn list and get those who are interested in "Todd's
Daily Paranoid Delusions & Net.Kook Rantings" to subscribe.


-- 
craig sanders <cas at taz.net.au>           (part time cyborg)