From: Len Conrad (no email)
Date: Sun Jan 01 2006 - 14:40:25 EST
>>Postfix never returns 5XX for temporary lookup problems, even when it
>>returns 5XX for NXDOMAIN and other hard failures.
>
>
>How is NXDOMAIN any more a "hard" failure? An authoritative server
>could be temporarily misconfigured...
"hard" for me is negative protocol response (instead of no
response). DNS NXDOMAIN or NODATA, or SMTP "5xx"
ain't my responsibility to mind-read, guess, and hedge that their
server is misconfigged. The sooner THEY pay for THEIR problems, the
better off we all are.
Len
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