Date: Tue, 5 Mar 2002 15:26:24 -0500 (EST) From: Mike Bertsch <questions@radioactivedata.org> To: Raja Velu <raja@micronetusa.com> Cc: <freebsd-questions@freebsd.org> Subject: Re: Sendmail - MX record resolution error Message-ID: <Pine.BSF.4.33.0203051521360.94691-100000@glow> In-Reply-To: <002a01c1c483$b3e87380$1b00a8c0@win98>
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Howdy, To check if there's an MX record for a domain, try: nslookup -q=MX <domainname> Not all companies use mail.<domain> as their mail server--some use smtp.<domain> or other random names, so as you surmised, pinging mail.<domain> won't always work. Even if the server does exist, the company may not have an MX record pointing to it. HTH, -Mike On Tue, 5 Mar 2002, Raja Velu wrote: > > Hi, > > What does this error mean? > > reject=450 4.7.1 <user1@company1.com>... Can not check MX records for > recipient host company1.com > > Does it mean that the domain "company1.com" does not have a mail server > associated with it? > > If so, how do I check if there exists an MX record for a particular domain. > I used to ping to mail.<domainname> and see if it resolves. That apparently > is not the right approach as the emails sent to a user today, generated the > above error even though I'm able to ping mail.<domainname> for his email > address. > > Thanks for your time. > > Rgds, > > Raja Velu > Senior Software Engineer > MicroNet USA, Inc. > 847 593 3639 x 112 > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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