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Re: "extreme SPF" scenario for ISPs

2004-02-02 01:29:28
Meng Weng Wong <mengwong(_at_)dumbo(_dot_)pobox(_dot_)com> writes:

1) ISPs are expected to be the point of control for outbound mail.
   Getting users to secure their machines is a lost cause.  ISP SMTP
   servers have to be responsible for performing virus and spam
   filtering.

Many ISPs disagree with this. They see themself as a transparent
carrier, much like a postal service.

2) ISPs ensure that all end-user accounts are funneled through the ISP's
   mail servers.  They can either use SS or just block port 25.
   Business DSL may or may not want to also take advantage of this
   protection.  This is already the recommended configuration anyway.

What definition so you use for ISP here? What about spammers that are
their own ISP?

As long as authenticated SMPT to you home SMTP server is the preferred
solution for roaming users, blocking port 25 sounds a bit strange.


-- 
Gustav Foseid, Initio IT-løsninger AS
http://www.initio.no/

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