[Asrg] BCP suggestion: port-blocking by ISPs

["Tim Bedding" <tim.bedding at polyhedra.com>]

Walter

> Several major consumer-oriented ISPs block port-25 traffic (coming and
> going) direct to external MTAs.  This is a palliative measure dealing
> with compromised machines.  We can do better.  We can implement
> preventative measures reduce the incidence of compromised machines.

I am considering the idea of a regulatory body in the UK using
fines to ensure compliance with certain rules to tackle spam.

One rule would be that ISPs must ensure rapid isolation of zombie
machines.

Should I add port 25 blocking to the list of rules?

Can you think of other things that definitely should be required?

Also, the UK government should lean on the US government to
follow suit (if possible).


With respect to your suggestions, I run a Linux box at home and
cannot see anything objectionable.

Regards
Tim

Crusade - The Path of Sorrows
Gideon: The stake's a hundred, call or fold.


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