James M Galvin <firstname.lastname@example.org> writes:
> Some vacation programs also ignore "precedence: bulk" and the like,
> so maybe memail is counting on that?
> Precedence is another one of those problematic headers. Popularized by
> USENET, today it enjoys so many different uses that making your
> statement out of context is specious.
Popularized by Usenet? Huh? Precedence has never been a Usenet header
that I've ever seen.
The oldest use of precedence that I'm aware of is that Precedence: junk
has been in the headers generated by the old-style Unix vacation program
for eons, and sendmail.cf had handling of a few different types of
precedence headers and they had some effect on queue prioritization.
Russ Allbery (email@example.com) <http://www.eyrie.org/~eagle/>