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From: Pete Resnick <firstname.lastname@example.org>
Subject: Re: CTE:
Date: Thu, 15 Dec 1994 15:16:07 -0600
> I went back to the archive and there was a long discussion about this
> around October 24, 1994. Evidently it was decided that NUL, bare CR, and
> bare LF are not handled properly by most MTAs. (I don't think it's worth
> rehashing those arugments here; some people agree and some don't.) In any
> event, it looks like the only choices with ISO-2022-JP is to use QP or
> BASE64 (or straight binary if anything supported it) as your CTE.
As Keith explained, ISO 2022 JP doesn't in practice include bare NUL,
CR, and LF.
I agree that RFC 1468 is a little bit ambiguous, but I think BNF words
started with *single* are prepared for US-ASCII on this RFC. (Remember
ISO 2022 JP is switching mechanism for US-ASCII -- single byte -- and
JIS X 0208 -- double bytes --.)