On Mon, Aug 21, 2000 at 11:36:45PM -0400, Patrick J. LoPresti wrote:
> I understand why qmail rejects messages containing a bare LF.
>
> My question is, why does it give SMTP result code 451 (indicating
> temporary failure) instead of a code to indicate permanent failure?
> Sending that same message will fail every time, will it not?
I've often wondered about this myself. The message in question, containing as
it does a bare linefeed, can *never* be accepted. So why suggest to the sending
host with a 451 code that it might have better luck if it tried to send the
exact same message again later?
Chris