From: Wietse Venema (wietseporcupine.org)
Date: Fri Dec 12 2003 - 08:57:29 CST

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narozk:
> hello,
>
> sometimes I get "Name service error for name=3Dt-online.de type=3DA: Host
> found
> but no data record of requested type". When I try to resend the mail some
> minutes (10-20) later, it works.. Btw. it's not only t-online.de (I expect
> that
> they did their dns stuff right..). I found many hints about that problem but
> no solutions i.g. from Wietse:
>
> "Postfix treats a NO_DATA reply identically to HOST_NOT_FOUND. Thus, in your
> case, the MX lookup failed with with NO_DATA or with HOST_NOT_FOUND, then
> Postfix tried the A lookup, which failed with NO_DATA"

If the DNS says that the MX and A records does not exist, then that
is final.

        Wietse

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