Prioritizing among MX records
Barry Margolin
barmar at alum.mit.edu
Mon Mar 8 21:16:09 UTC 2004
In article <c2i7rv$le4$1 at sf1.isc.org>, phn at icke-reklam.ipsec.nu wrote:
> Under normal circumstances *some* mail will be delivered=20
> to "higer-MX" due to various sources ( network disturbances etc),
> the amount seems to depend on the "diversity" of the mailhosts.
This should be very rare -- a network disturbance has to be pretty
severe for a connection attempt to fail completely.
> I have observed in one organisation that has MX both in Europe
> and US that US senders seems to prefer the US mailhost in spite
> of "higer-mx".
Are you sure they don't have geographically disperse DNS servers that
give out different MX records, i.e. the DNS server in US has lower MX
preferences on the US servers?
--
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***
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