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Article #3675

Re: Sendmail error: Domain must exist

#3675
From: Barry Margolin
Date: Wed, 15 Jul 1998 00:00
40 lines
2326 bytes
In article <35ABBDBE.4E2B5397@waffle.blah.nu>,
Paul Black  <paul@waffle.blah.nu> wrote:
>I'm running Bind 8.1.2 and sendmail 8.9.1 on Linux and I seem to have
>a problem receiving non-spam emails!
>
>Emails that I receive that have a hostname after the "@", such as spam
>from iname.com are received fine. Emails from domains that are not
>hostnames, such as rrl.co.uk and madge.com, are rejected with the
>message: "Sender domain must exist".
>
>Querying DNS shows that the nameserver information is present but
>no information about MX records.
>E.g.
>paul@darwin> nslookup
>Default Server:  localhost
>Address:  127.0.0.1
>
>> set q=any
>> madge.com

Don't use an "any" query, since that just shows you what happens to be in
your server's cache.  If you want to see MX records, use "set q=mx".  I
generally use the "host" command:

pasilla:~#97% host madge.com
madge.com mail is handled (pri=50) by inet.dev.madge.com
madge.com mail is handled (pri=100) by fallback.mail.pipex.net
pasilla:~#100% host rrl.co.uk
rrl.co.uk mail is handled (pri=40) by relay2.mail.uk.psi.net
rrl.co.uk mail is handled (pri=5) by mail.rrl.co.uk
rrl.co.uk mail is handled (pri=20) by mx3.mail.uk.psi.net
rrl.co.uk mail is handled (pri=40) by relay1.mail.uk.psi.net

I don't know why your sendmail is complaining about these, as they look
fine to me.

-- 
Barry Margolin, barmar@bbnplanet.com
GTE Internetworking, Powered by BBN, Cambridge, MA
*** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to newsgroups.
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From: Barry Margolin <barmar@bbnplanet.com>
Subject: Re: Sendmail error: Domain must exist
Date: 1998/07/15
Message-ID: <YGVq1.45$6o3.876268@cam-news-reader1.bbnplanet.com>
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Newsgroups: comp.mail.sendmail,comp.protocols.tcp-ip.domains,demon.ip.support.unix
Originator: barmar@bbnplanet.com (Barry Margolin)