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Re: rfc2821bis-01 Issue 14 Continuation of 222 greeting and Issue 15 syntax for multiline replies

2007-04-10 05:38:05

On Tue, 10 Apr 2007, Hector Santos wrote:

Sorry if I missed this, but where is this stated? Is it implied?

"The format for multiline replies requires that every line, except the
last, begin with the reply code" - i.e. only one reply code.

Even then, wouldn't be inconsistent with the 150 description?  and it
doesn't match the current MUA support?

None of the commands so far specified in SMTP or its extensions can
produce a 150 reply.

Three MUAs is not a good sample of SMTP client implementations. Sendmail
and Exim only look at the first line of a reply.

Well, same as above, shouldn't [differing reply codes] be defined?

Should the meaning of syntactically invalid garbage be defined?

  - 150 SHOULD/MUST NOT be used without extended status codes?

It must not be used at all.

Explain?

None of the commands so far specified in SMTP or its extensions can
produce a 150 reply.

I don't see how EXTENDED status codes are even related.

Why did you keep bringing them up?

      Note: Unextended SMTP does not have any
      commands that allow this type of reply, and so does not have
      continue or abort commands.

I "believe" the last note had the intention to NOTE that 150 would be used as
a response that the client will REACT too.  The "Unextended
SMTP" implies they will be ignorant on how to react. i.e, an ESMTP spec might
define this.

However, it is still in play for normal 2821 operations.

Absolutely not. The sentence you quoted means that 1xy replies can only
occur if an extension is specified to use them. Without the server
offering an explicit extension and without the client explicitly
activating that extension, they cannot be used.

Nonetheless, there is no indication whatsoever whether the server
SHOULD/MUST/NOT use it.

None of the commands so far specified in SMTP or its extensions can
produce a 150 reply.

Tony.
-- 
f.a.n.finch  <dot(_at_)dotat(_dot_)at>  http://dotat.at/
FORTIES CROMARTY FORTH: WEST OR SOUTHWEST 5 OR 6. SLIGHT OR MODERATE,
OCCASIONALLY ROUGH. MAINLY FAIR. MODERATE OR GOOD.

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