bounced email to a freedbsd mailing list

[Dan Strick]

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 at 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