On Wed, 11 Mar 1998, Andrew V. Kovalev wrote:
> Hmm.. I am to lazy now to grep RFCs 8xx but it seems to me that any host on
> internet that wants to send mail has a right to connect to appropriate MX
> host..
Not if the supplier of the Internet connection says "you may not". For
example, we do not permit students in their college rooms to send SMTP
to arbitrary hosts (and we back this up with router blocks). That is the
condition on which we permit them to connect to our network.
It would stop a lot of spam if ISPs put something similar in their
contracts, and also blocked SMTP from dialup lines, except to their
servers. I think some do do this.
--
Philip Hazel University Computing Service,
ph10@??? New Museums Site, Cambridge CB2 3QG,
P.Hazel@??? England. Phone: +44 1223 334714
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