From owner-freebsd-questions@FreeBSD.ORG  Sun Apr 16 22:23:51 2006
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Date: Sun, 16 Apr 2006 15:23:44 -0700 (PDT)
From: Dan Strick <strick@covad.net>
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To: freebsd-questions@freebsd.org
Subject: bounced email to a freedbsd mailing list
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I just got a couple of messages to freebsd-chat rejected.
Can someone clue me in?  The rejection message was:

    The original message was received at Sun, 16 Apr 2006 06:33:36 -0400
    from h-67-101-99-172.snfccasy.dynamic.covad.net [67.101.99.172]

       ----- Transcript of session follows -----
    ... while talking to mx1.freebsd.org.:
    >>> DATA
    <<< 450 Client host rejected: cannot find your hostname, [69.49.106.81]
    <freebsd-chat@freebsd.org>... Deferred: 450 Client host rejected: cannot find your hostname, [69.49.106.81]

Dig -x 69.49.106.81 reveals:

    ;; ANSWER SECTION:
    81.106.49.69.in-addr.arpa. 21124 IN     PTR     mail871.carrierinternetsolutions.com.

Is this a temporary condition?

Dan Strick