On Tue, 18 Sep 2001, Matthew Byng-Maddick wrote:
> No. You *aren't* allowed to reject based on the HELO parameter. RFC1123
> makes this clear. So does RFC821. (2821 is just a PROPOSED STANDARD, and
> hence shouldn't be referred to).
Er, you are *allowed* to do anything you like. RFCs are not laws. You
can reject incoming mail for any reason you feel like (phase of the
moon, bad hair day, whatever). If, however, the result is that many
people cannot communicate with you, that is your problem. Well, maybe
not, if you don't want to communicate with them. Nobody can force you to
accept email.
I don't know when "proposed standard" changed to "standard", but RFC
2821 is as standard as it gets. Note that 821 is officially listed as
"obsoleted" by 821. So you shouldn't refer to 821. :-)
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
