I did not recall seeing explanatory text on this, but the example seems to
indicated that within a message/pem-clear (and presumably within
an application/pem-encrypted) you can have essentially a MIME compliant
msg. but w/o the MIME-Version header. Is this the case? Perhaps requiring
the MIME-Version, making the stuff inside message/pem-clear & application/
pem-encrypted fully MIME compliant would actually simplify interpretation.
The stuff inside message/pem-clear and application/pem-encrypted is intended to
be a complete MIME object, with a content-type header and so on. If this isn't
clear the document needs to be changed so that it is. (Wording recommendations
are welcome!)
MIME-Version headers are not required on encapsulated MIME message/rfc822
messages; I simply extended this to cover application/pem-encrypted and
message/pem-clear. If there's a reason to have the header there that applies to
these two specifically I'm not aware of it.
Ned