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Re: rfc2821bis-01 Issue 18: Usability of 1yz replies

2007-04-11 14:43:20

On Wed, Apr 11, 2007, David F. Skoll wrote:

Hector Santos wrote:

What it probably interested here is that its uses a non-standard less
than 100 code for "informational", so something like this is valid under

It's "sendmail".


    250 whatever

Or even:
   099 Info
   099 Info
   250 Whatever

Very interesting.

Unused in practice, I believe.

I hope nobody plans to say "sendmail does this, so it must be right".
Please don't use an implementation that was done before the RFCs
to justify wierd/bogus behavior. It causes big problems for authors
of other MTAs (as they might be "forced" to implement that wierd
behavior too).  sendmail allows all kind of bogus things (mostly
to deal with broken software) which are not valid according to the
RFCs.  The RFCs should (clearly) define what a protocol should look
like, not some implementation.

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