[Dshield] Vast increase in spam attempts

Jon R. Kibler Jon.Kibler at aset.com
Tue Jan 3 15:05:11 GMT 2006


David Cary Hart wrote:
> Same here. However, correct me if I'm wrong but almost all of this is coming
> from dynamic space. Wouldn't you be better off (in terms of cycles and
> bandwidth) by rejecting dynamic clients before RCPT TO?

Actually, most is coming from static cable modem of xDSL netblocks. About half from the US/Canada, one-third from Asia, and the rest from Europe and elsewhere.

Good point about rejecting dynamic addresses, but we already reject known DHCP blocks.

Jon
-- 
Jon R. Kibler
Chief Technical Officer
A.S.E.T., Inc.
Charleston, SC  USA
(843) 849-8214




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