Thank you for your response,
please note that the question is whether the _inner_ MIME-entity should have
MIME-Version included or not.
They argue as follows:
"Here are some arguments why the MIME-version header field should not be
required in an inner entity of a S/MIME message. I have chosen to refer to
the most recent RFC versions since these hopefully address some of the
ambiguities of the preceding versions.
In RFC 2045 (MIME Part One) chapter 3 "MIME Header Fields" the formal
definition of "entity-headers" does not contain the version header. The
version header is only part of "MIME-message-headers". And since RFC 3851
(S/MIME Version 3.1) concerns securing "MIME entities" it seems reasonable
to require the "entity-headers" to be included in the inner MIME entity but
not the "MIME-message-headers". Of course the outer S/MIME message itself
should have a version header. This itself implies (per definition) that the
contents (inner entity) is a MIME entity which thereby is described by the
"entity-headers" Content-Type etc."
I would be very happy to settle, this.
Best regards
Joachim Abrahmsén
-----Ursprungligt meddelande-----
Från: Paul Hoffman [mailto:phoffman(_at_)imc(_dot_)org]
Skickat: den 31 maj 2006 17:26
Till: Joachim Abrahmsén; ietf-smime(_at_)imc(_dot_)org
Ämne: Re: MIME-Version or not?
At 5:14 PM +0200 5/31/06, Joachim Abrahmsén wrote:
Hi,
The energy sector in Sweden decided to use S/MIME for exchanging
EDIFACT-messages between different actors, where an EDIFACT-message is
encoded in an inner MIME-entity (RFC 1767). However, an interoperability
issue have turned up.
Some system developers have interpreted the RFC's as the 'MIME-Version'
should only be included in the outer MIME-entity and not in the inner
MIME-entity, while others have included 'MIME-Version' in both inner and
outer MIME-entity.
When I read section 3.1 of RFC 2311 (S/MIME v2) and RFC 3851 (S/MIME 3.1) I
would say that 'MIME-Version' should be included in both inner and outer
MIME-entity as they are unrelated.
That is certainly how I would interpret it. What is the logic of the
people who say that there should not be a MIME-version on the outer
message?
--Paul Hoffman, Director
--Internet Mail Consortium