Dan Kohn <dan(_at_)dankohn(_dot_)com> schrieb/wrote:
I believe that Einar could be most easily satisfied with something along
the lines of a UTF8HEADERS ESMTP extension, which would specify both
that 8 bit character are permitted in the header and that those
characters MUST be interpreted as UTF-8. It would be expected that this
extension would normally be used in conjunction with 8BITMIME [1] or
BINARYMIME [2]. The challenge is that any mail relay implementing this
extension MUST be able to downconvert headers to 7-bit RFC 2047 [3]
compliant encoded words if the next hop does not support UTF8HEADERS.
To encode headers using the methods described in RFC 2047, you
need to know the exact structure of the header. This is impossible
for future headers.
Claus
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