Mark wrote:
----- Original Message -----
From: "Tomi Panula-Ontto" <tomi(_at_)panula-ont(_dot_)to>
To: <asrg(_at_)ietf(_dot_)org>
Sent: Tuesday, December 09, 2003 11:59 AM
Subject: Re: [Asrg] Re: 6. Proposals: MTA MARK
IMHO, people using dynamic IPs should not be allowed to run
(trusted) smtp servers anyway. Why so? According to some recent
studies one third of the spam is generated in some compromised
home computers
If that logic holds true, then there is exactly a twice more compelling
reason to disallow static IP addresses from running trusted SMTP servers. :)
Humor aside, those studies may not be accurate. A while back a report
from MessageLabs claimed that over 80% of all spam was sent from
hijacked computers. When asked directly, MessageLabs admitted that they
were counting open proxies as "hijacked computers". So anytime such
study is made, you have to check the raw data.
Also, I emailed Sophos who made the original study to obtain the raw data.
Yakov
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Yakov Shafranovich / asrg <at> shaftek.org
SolidMatrix Technologies, Inc. / research <at> solidmatrix.com
"Some lies are easier to believe than the truth" (Dune)
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