Mail Routing Issues {Scanned by HJMS}

[Furnish, Trever G]

I'd suggest asking this question in the sendmail newsgroup or on a sendmail
mailing list instead of here.

-----Original Message-----
From: Jason Burzenski [mailto:jburzenski at AMERICANHM.COM]
Sent: Tuesday, September 16, 2003 11:06 AM
To: MAILSCANNER at JISCMAIL.AC.UK
Subject: Re: Mail Routing Issues {Scanned by HJMS}



Good point Trever, that was my original problem.  But I think you hit the
nail on the head with your previous post Antony, stating that the MX record
was pointed to a CNAME.  That does sound exactly like what happened but I'll
never be sure.

An just for completeness, to answer your questions:

I asked the DNS admin to 'make the record for b.com respond exactly like
a.com and c.com for an MX query.'  The problem was, a.com and c.com would
return NO information about MX whereas b.com would return that canonical
name junk.

Posting the real domain names wouldn't have helped anyway because this is an
internal DNS server that is causing my routing problems so you couldn't have
done any testing. :)

You do bring about an interesting point and maybe I should now consider
deploying a separate dns service for the purpose of maintaining these
records or work towards repairing the existing internal dns server.  Ideally
I would like to have my particular mail routes ignore DNS but since Im
already ignoring DNS from the perspective of the configuration, this does
not seem possible.

FYI:  I tried removing the resolv.conf file last night to see what effect it
would have on my message routes and what happened was suprising.  All mail
simply queued up.  Nothing was delivered even though I have my routes
specified as IP addresses.  Go figure.

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