Let's say you have a multipart/mixed where the third part is 8bit and labelled
as follows:
I see. The thorny issues seem to arise when a multipart is PEM enhanced.
Is it not possible to limit CTE changes to the application/pem-clear
or application/pem-encrypted body part and not to the body part within?
(Presumably, to avoid the issue of doubly encoding something in base64 say,
the body part within should carry a CTE of 8bit....)
That is:
Content-Type: application/pem-clear
Content-Transfer-Encoding: quoted-printable (OK to change)
Content-Type: application/X-hairy-8-bit-data
Content-Transfer-Encoding: 8bit (not OK to change)
<the data>
PEM enhancements will be applied to the Content-Type: application/X-hairy...
through the end of the data.
Actually, wouldn't gateways adhere to this as things currently stand since
they don't know that the inner body part is really a MIME body part at all?
-Ray