DNS tells mail to go to the wrong host? (Sorry, long post here..)

David Cunningham newsonly at please.com
Wed Oct 6 20:29:07 UTC 1999


Thank You!!!!!

I have been working on this for 3 days!  I have NO IDEA how beta.com ended
up in sendmail.cw but now that it's out all works smooth as silk.  You are a
poet and a scholar Barry.

David Cunningham

Barry Margolin <barmar at bbnplanet.com> wrote in message
news:%jNK3.559$854.23213 at burlma1-snr2...
> In article <7tep7l$c0v at chronicle.concentric.net>,
> David Cunningham <newsonly at please.com> wrote:
> >through sendmail on mercury to neon.beta.com.  So far I can't do this.
When
> >I try, I get a sendmail delivery error from mercury saying the user does
not
> >exist.  Of course I have verified that the user (david at beta.com) does in
> >fact exist.  In fact I tried to send mail directly to david at beta.com by
> >setting up Outlook Express (on Poweron) to use neon.beta.com as the SMTP
> >server and it gets through fine.  So here is the conclusion I'm drawing.
> >Neon can receive mail for beta.com fine but mercury is not routing the
mail
> >to it.
> >
> >To confirm this I unplugged neon (aka argon) from my hub and tried to
send
> >mail to david at beta.com by way of mercury again.  Again Mercury says the
user
> >is unknown.  This is weird considering sendmail on mercury can't even
talk
> >to sendmail on neon.  This has me thinking that maybe for some reason
> >mercury is trying to deliver david at beta.com to it's own local mailboxes.
> >
> >So I created a david account on mercury.  Now mercury happily delivers
> >emails for david at beta.com to it's own david account.  This is not the
> >desired result.  Beta.com should be on neon, not mercury.
>
> This sounds like a problem with mercury's sendmail configuration, not a
DNS
> problem.  If you have "Cw beta.com" in mercury's configuration, or you
have
> beta.com in its sendmail.cw file, it will try to deliver all mail for
> user at beta.com locally -- the Cw line is for telling sendmail what
hostnames
> should be delivered locally, rather than via SMTP.
>
> --
> Barry Margolin, barmar at bbnplanet.com
> GTE Internetworking, Powered by BBN, Burlington, MA
> *** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to
newsgroups.
> Please DON'T copy followups to me -- I'll assume it wasn't posted to the
group.
>




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