On Tue, Dec 19, 2000 at 01:31:07PM +0000, Steve Haslam wrote:
> Assuming it's being delivered by Exim's default lookuphost router,
> then it will try to go to the lowest-numbered MX first, and try higher
> numbered MXs if the lowest is unavailable. However, it will not
> deliver to an MX with the same or greater number than the delivering
> host itself has. IIRC.
As a follow-up to this, a question of my own on MXes this time.
I know (sort of) that MX recordsare supposed to use canonical names,
so that sendmail (spit) can use the *name* on the RHS of the MX as the
comparison to "is this me". The RFCs are weighted to this
implementation too.
I cannot find any description of how/what exim does. I will eventually
look through the code, but an answer from Phil or Nigel or someone
else who knows canoncially (pun intended - sorry) would help, and if
the behaviour is (as I hope) to use IP addresses and not names, then
may I suggest adding this to either the FAQ or the docs ?
Background, I have MX records for knowledge.com et al. which are not
canonical, but I have never had a real problem - expect DNS checking
tools like "host -C" whinging at me.
Regards,
--
Peter Galbavy
Knowledge Matters Ltd
http://www.knowledge.com/
