The argument is something like this: In order to prevent spam, you need to positively identify mail senders. SMTP precludes this. Therefore SMTP is the problem. While it's true that SMTP is pretty weak in the authentication department, and at least plausible to argue that authentication could suppress spam, the argument that the problem is SMTP doesn't really hold water. The basic problem is network topology.
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Posted by Tim at August 10, 2003 09:47 AM
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