I haven't been able to find anything that discusses the intention behind the
i=. I expect
they chose this i= because that's the envelope from, but the i= is suppose to
be a person,
not a mechanical address, correct?
Historical bit: it is my impression that i= was invented by people who
were used to corporate mail systems where user identities are tightly
controlled and all the mail can be traced back to an individual user,
so the i= was that user's mail address.
Needless to say, in the wider world, there are a lot of mail systems
that don't work that way.
R's,
John
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