From: Colm Buckley (colm at domain tuatha.org)
Date: Fri 18 May 2001 - 12:21:05 IST
On Friday 18 May 2001 12:09, Niall wrote:
> Whoops - it's worse than that. mail.indigo.ie is declared as the
> primary MX for vistech.ie. However, mail.indigo.ie will not accept
> mail for vistech.ie. By my reading, that means that every mail that
> is sent to vistech will first of all be bounced from mail.indigo.ie
> before being resent to either smtpstore02.strencom.net or
> smtpstore02.strencom.net which are their other declared
> MXs. Somebody in vistech should probably fix that :-)
In fact, proper behaviour is *not* to fall back to secondaries if the
primary is reachable but doesn't accept mail for the domain; so I
suspect that lot of mail to vistech is going west entirely. I think
sendmail falls back to secondaries, but there's no good reason for
doing this, because the secondaries will only try to contact the
primary, which will presumably still bounce the mail.
You wouldn't *believe* the amount of MX crap I see, both from
administring this list, and of looking after the mail servers for
places like pigsback.com. Occasionally, something makes me laugh -
look at the MX records for "hotmial.com", for example.
-- Colm Buckley at domain NewWorld Commerce Business: +353 1 4334334 / colm at domain nwcgroup.com / http://www.nwcgroup.com/ Personal: +353 87 2469146 / colm at domain tuatha.org / http://www.tuatha.org/~colm/ Experience allows us to recognise our mistakes when we make them again.
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