On 27 Nov 2015 2:24 PM, John C Klensin wrote:
--On Friday, November 27, 2015 7:10 PM +0000 Viktor Dukhovni
<[email protected]> wrote:
I'm not sure I completely understand what is happening here,
but, if the text you cite is part of a non-delivery
notification, a body part would have to have content-type
message/global-* to contain non-ASCII (specifically UTF-8;
there are deliberately no other options) information. And
one is not supposed to produce those notifications unless
SMTPUTF8 is in use. See RFC 6533 for more information.
The message/global MIME type is only needed for encapsulating
messages with non-ASCII headers. MIME body parts with UTF-8
content have been around long before EAI.
Of course they have. Non-ASCII content/ body parts were a
primary criterion for what became MIME, even before the
multimedia requirements started being considered.
I receive such messages from my father (in Russian) quite
regularly:
...
His email address is ASCII, and the subject is RFC 2047
encoded, so EAI is entirely out of scope.
Again, as intended, even though some of the stronger advocates
of EAI hope that it will gradually eliminate the need for RFC
2047 encoded-words.
But, as I understood the question, it had to do with delivery
failure messages (NDNs), possibly even ones that were intended
to be machine-processed. And that is where SMTPUTF8 and
extended notification formats come in.
It appears to me that you, Jason, and I are understanding the
issue and question differently. If Felipe still thinks there is
a problem, some clarification from him might help.
Yes, NDNs, of the variety that Exim sends in response to “fail text
"..."” filters, are what my inquiry concerns.
I believe my inquiry has been answered satisfactorily: in order to have
NDNs in, e.g., Russian I need either to turn on SMTPUTF8 or transcode
the multi-byte characters down to some US-ASCII representation … the
latter of which would really be more accommodating the issue rather than
addressing it.
Thank you, everyone! :)
-Felipe Gasper
Houston, TX
--
## List details at https://lists.exim.org/mailman/listinfo/exim-users
## Exim details at http://www.exim.org/
## Please use the Wiki with this list - http://wiki.exim.org/
