On Wed, 26 Nov 1997, John Horne wrote:
> However, and this is getting a bit finicky I guess, how does exim determine
> whether 19.43.67.163 is a domain or an IP address when used, for example, in
> a host list (sender_reject_hosts for example (manual page 33))? It could be
> either couldn't it?
Blush.
I went to edit that portion of the manual just after writing my previous
message and had the same horrible thought. You are quite right. I have
screwed it up.
In mitigation, I *think* I just copied this from Smail, and also, of
course, from many programs such as ping and telnet where you can
give an unadorned IP address as an alternative to a host name. I don't
think they go away and do a host name lookup just in case.
This problem will go away when we are fully converted to IPv6, because
IPv6 addresses contain colons. So I suppose I can say "fixed in version
n, sometime next century"... :-)
--
Philip Hazel University Computing Service,
ph10@??? New Museums Site, Cambridge CB2 3QG,
P.Hazel@??? England. Phone: +44 1223 334714
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