On 2/8/2018 8:05 AM, John R. Levine wrote:
I'm not saying any sensible person would do that, but as far as I can
tell, that's what the spec says.
From a quick review of RFC 5322, I think you are correct. I also
believe (know) that this is not what has been intended for header field
name specification, dating back to RFC 733.
That is, the capability you note is contrary to what I believe was
intended in the RFC 5322 specification. And deviation from iontent is
the requirement for qualifying as an errata on an RFC.
I suggest you submit it. It will be interesting to see the followup.
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