On Aug 1, 2006, at 18:16, John D. Hardin wrote:
On Tue, 1 Aug 2006, John Rudd wrote:
Not directly stopping spam, but helping to close holes that are
manipulated by spammers, and make it easier to track them:
1) Require Virus Scanning on all SMTP transactions, on the recipient's
side of the transaction (ie. the "Server") (to help minimize zombie
PCs). Any SMTP server which accepts a virus laden email, for which
their anti-virus engine already had an update for that virus, should
be
held accountable on every level for any damage done by that virus
instance. Any SMTP server which doesn't run a virus scanner would be
accountable for every virus that passes through their system.
Infeasible, too many players, too many technically unsophisticated
players.
2) Require Domain Keys on all messages
Infeasible, too many players, too many technically unsophisticated
players.
For the above, it doesn't matter. The point is "I expect everyone to
do it", the point is it becomes standard, and perhaps even law, to
block the people who don't. It doesn't matter to me if they're
incapable complying due to ignorance. That's their problem/burden, not
mine (nor the problem/burden of the rest of the world).
And, actually, due to #5, the answer to these becomes the same as your
answer to #3 -- only ISPs need to be concerned about it (as I said, on
the SMTP transaction, it's the "Server" side of the transaction that
has to do it -- anyone who is running a Server has a reasonable burden
of being "technically sophisticated" enough to run a virus scanner and
set up domain keys ... those who aren't SHOULD be blocked).
3) Require accurate reverse DNS records for all IP addresses in use by
a given IP block
Feasible and desirable, only ISPs need to be involved.
4a) maybe generalize #4 to include various other RFC issues (matching
PTR and A records is an RFC requirement, after all), such as the
things
tracked at RFC-Ignorant
Less feasible, too many players.
I don't see how it's too many players. It's just expanding an already
existent RBL to add more criteria of the same flavor.
