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Date:      Fri, 10 May 1996 16:29:34 -0400
From:      Brian Tao <taob@io.org>
To:        freebsd-isp@freebsd.org
Subject:   rmail not delivering to MX hosts?
Message-ID:  <199605102029.QAA08694@zot.io.org>

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    I have a server running FreeBSD 2.1 and Taylor UUCP 1.06 (as
supplied with the OS).  Mail and news packets are queued up and
transferred between the server and the various clients.  However,
clients cannot seem to send mail to a site that only has MX records,
but no A records.

    When a UUCP site connects to us and uploads a mail message to,
say, maloca.com (no A record, but mail handled by gate.maloca.com), I
can see uuqxt handling the request, but the sendmail log doesn't show
a corresponding delivery to gate.maloca.com (the MX host for
maloca.com).  This would suggest that rmail doesn't even get around to
handing the message over to sendmail for delivery.  I played with the
nodns and nocanonify features of sendmail 8.6.12 anyway, to no effect.

uuxqt murphy PAUL (1996-05-10 11:51:30.88 7908) Executing X.murp62756fdc (rmail bernie@maloca.com)


    Then something else strange happens.  A bounce message appears to
be generated as a result of the non-delivery:

May 10 11:51:31 egate sendmail[7916]: LAA07916: from=<>, size=1036, class=0, pri=31036, nrcpts=1, msgid=<m0uHuTb-000dz3C@egate>, proto=SMTP, relay=ether.egate.net [207.34.206.3]
May 10 11:51:31 egate sendmail[7918]: LAA07916: to=<PAUL@murphy.egate.net>, delay=00:00:00, mailer=uucp-dom, relay=murphy, stat=Sent

    Sendmail correctly sends it through the uucp-dom mailer and uux is
run, but no batch ID is assigned:

uux egate daemon (1996-05-10 11:51:31.30 7919) Queuing (PAUL@murphy.egate.net)

    No file is created in /var/spool/uucp/murphy/D./ and I don't see
any errors logged.  The only anomaly I can see is the null sender
field ("from=<>").

    So I really have two questions.  :)  How do you get rmail to
deliver messages to hosts without an A record, and why does uux say it
is queueing a delivery for a UUCP site when it really isn't?  Thanks
in advance for any advice given.
-- 
Brian Tao (BT300, taob@io.org, taob@ican.net)
Systems and Network Administrator, Internet Canada Corp.
"Though this be madness, yet there is method in't"



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