North American Network Operators Group|
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Re: short Botnet list and Cashing in on DoS
there are many ways of sending spam that dont use port 25..True, but reducing spam from millions to thousands seems like something good, no?
individual rules are costly to implement and users wont use a service where you have to pay more for basic servicesSeveral big ISP's are blocking port 25 now. I believe this will catch.
It limits the amount of junk coming out from their users, and the usage of their tubes.
I doubt even 0.001% of dynamic range Cable/DSL users will ever call to ask for port 25 to be opened.
This is something ISP's can implement, and it works.