John Clarke wrote:
Hmm, though that gets me thinking... - while mx2.isa.net.au resolves to the
same IP as the actual hostname on the machine
(hungryhungryhippos.isa.net.au), will sendmail realise that it's the same
machine? Or should I be doing a Cwmx2.isa.net.au to make sure?
I wouldn't have thought so. Class w are the domains for which sendmail
accepts mail for local delivery (aliases for the machine itself and any
domains it hosts). I don't think it's anything to do with relaying.
Actually I'll countermand John C's advice and suggest that yes, it
is actually a good idea to put mx2.isa.net.au in to your Cw as it
does help the secondary MX relaying problem.
Unless of course your reverse DNS points to mx2.isa.net.au which is
what John F suggested, or change your MX to point to the real host
name as per DNS.
Putting mx2.isa.net.au into your Cw is a reasonable work-around,
however, and one that I've used many times in the past.
--
Del
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