[e2e] new mailing list policy in effect

[Joe Touch]

Jon Crowcroft wrote:

> there's an interesting analogy in what has happened to e-mail and
> lists and bboards after we piecemeal deploy
> anti-spam measures, and what has happened to the internet after we
> piecemeal deploy anti-dos measures - nats,
> firewalls, ...

The fact that NATs affect DOS attacks is a side-effect of

	a) deliberate blocking incoming connections to support
	ISP service differentiation (you run a server -> you're
	a business -> you pay business rates)

	b) the unintended consequences of address aggregation
	(a technical flaw)

In the case of the Internet, we block DOS by blocking all incoming 
connections in most cases.

In the case of email, we block spam by blocking non-user posts.

In both cases, we circumnavigate the real issue (reducing load of 
incoming requests or distinguishing spam) by putting up a 
'one-size-fits-all' blockade that may (more in the case of NATs) do more 
harm than good.

Joe