Push Me Pull My Finger Re: [FoRK] At what point is email
Eugen Leitl <
eugen at leitl.org
> on >
Fri Dec 8 00:07:49 PST 2006
On Thu, Dec 07, 2006 at 06:23:46PM -0800, Tom Higgins wrote:
> Reverse the traffic flow. The item is not send until requested.
It's a good idea. But e.g. http://www.im2000.org/ is no longer SMTP.
One can examine and potentially reject content at MTA level,
which minimizes resource use. One could do throttling (e.g. via pf)
by traffic shaping, depending on OS fingerprint or the wrong
address space. One could add greylisting, tar pits, and so on. Each of
these breaks some of the expectations, but they still don't
mess with SMTP as a whole. They do limit the amount of raw spam you have
to deal with in the MUA (which can also penalize by the point
of origin, check digital signatures, do bayesian things, and
have personal whitelisting rules).
I personally think everyone should get their virtual server,
with a static IP they can't change overnight, their own MTA.
If you got zombied, you'll notice you no longer can reach
anybody. Your load is localized, there's no longer a central
hotspot in an ISP's infrastructure which gets hammered.
Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org
ICBM: 48.07100, 11.36820 http://www.ativel.com
8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE
More information about the FoRK