On Sat, 23 Dec 2000, Peter Galbavy wrote:
> According the "DNS and BIND, 3rd Edition" MX records must be canonical
> host names, because sendmail (and RFC written to document sendmail's
> behaviour I guess) say that a mail host compares MX records to it's own
> name - not IP address - and uses that as a rule to check if it should
> relay onward to any lower MX host.
>
> Are you saying that exim does not do this ?
Yes.
> If so, great :-)
Glad to be of service.
> > As well as checking by IP address, there is some checking by name.
> > hosts_treat_as_local is a list of such names.
>
> Should I then list all my (reverse)CNAMEs here normally ? Seems like a sensible idea anyway, even if lookup is by IP.
No, I don't think so. This feature was introduced for clusters of hosts
in some unusual situations. (Can't think of an example offhand.)
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
