Arvel Hathcock wrote:
Should we add some text
like “signers MAY exclude X
type headers when calculating the z= tag?” I was polishing our
implementation today and integrating it and turned on the z= tag
wherein my test
messages promptly grew really large due to thousands of X headers (from
SpamAssassin and other sources too).
The z= tag allows you to put as many
or as few headers in it as you want. I typically
only put subject, from, to and maybe a few others that I regularly see
getting toasted.
Was this actually unclear? If so it might make sense to be more
explicit.
Mike
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