Philip Guenther <guenther+mtafilters(_at_)sendmail(_dot_)com> writes:
4) A message header that looks like:
...
To: baz(_at_)foo(_dot_)com
...
To: apa(_at_)baz(_dot_)com
...
To: foo(_at_)bar(_dot_)com
Given the meanings layed out in rfc2822 for "header" and "header field",
I don't see how the text can be interpreted as permitting anything
besides #4. The other choices all either appended text *to* a header
field or added the header field somewhere besides the end of the
existing header, neither of which match the text of the draft.
I agree, but I was using the RFC 3028 terminology. 3028 sometimes
uses the word "header" as referring to (in RFC 2822 terminology)
header fields. E.g., from "2.4.2.2 Headers":
A header name never contains a colon. The "From" header refers to a
line beginning "From:" (or "From :", etc.). No header will match
the string "From:" due to the trailing colon.
Given this, it was unclear (to me) which definition was used. But if
it is clear for everyone else, ignore my message.