Date: Wed, 12 Sep 2007 09:27:51 -0500 From: Derek Ragona <derek@computinginnovations.com> To: "brad davison" <demonichandextensions@hotmail.com>, freebsd-questions@freebsd.org Subject: Re: Domain of Sender does not exist Message-ID: <6.0.0.22.2.20070912092716.026cedb8@mail.computinginnovations.com> In-Reply-To: <BLU116-F1212268B1D74A69B25D616A1C20@phx.gbl> References: <BLU116-F1212268B1D74A69B25D616A1C20@phx.gbl>
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At 08:58 AM 9/12/2007, brad davison wrote:
>We have SMTP AUTH set up on our mail server. Our mail server accepts mail
>for several domains.
>x.com
>y.com
>z.com
>
>Outgoing messages from [user]@x.com, and [user]@y.com goes out fine, but
>emails going out from [user]@z.com are getting:
>
>Domain of Sender does not exist ([user]@z.com] 5.1.8
>
>The oddest thing, is that this server is the MTA for z.com. Sending to
>[user]@z.com will end up on this box no problem.
>
>I did not set up our DNS, and it is in Active Directory. In our DNS
>"z.com" in the Forward Lookup Zone has A record for the email server, and
>MX record for the email server.
>
>What could be hanging this up? The x.com and y.com are not specified in
>our DNS locally at all, so I am not sure how to model the DNS for these
>domains.
>
>Also, when I 'paused' the z.com zone, I got the
>Domain of Sender does not resolve 4.1.8 error.
>
>Any leads on where my DNS or configs might be not able to resolve this domain?
What are you using to send mail? If it is sendmail, sounds like a sendmail
error.
-Derek
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