On Fri, 5 Jan 2001, Nigel Metheringham wrote:
> There are a few other things you can do but this has worked well in a
> previously built system.
I believe that freeserve has used some additional intellegence. My
reasons for suspecting this is
(a) I've never seen a single piece of spam out of them
(b) As a former (I've moved of of the UK) freeserve customer, I found
that some of my legitimate, but formally suspicious, mail was
delayed, presumably frozen, on a POL server for a few hours.
Those messages had "forged" headers (from my work address) and
were Bcc'ed to almost 100 addresses.
Unfortunately there has to be some "security through obscurity" with such
filters, because if the bad guys learned to precise parameters they could
fly just under them. But because it is in one ISPs interest to help
another prevent spam, they might be willing to share technology privately.
> The one thing you need to do is control the dialups - otherwise all
> you can do is play whack-a-mole with the spammers.
I completely concur.
-j
--
Jeffrey Goldberg
I have recently moved, see
http://www.goldmark.org/jeff/contact.html
Relativism is the triumph of authority over truth, convention over justice
