On Sun, 10 Mar 2002 18:19:14 -0700 (MST) John Hardy <email@example.com> wrote:
> So if I understand you correctly, Majordomo actually puts the envelope
> together with the message, and then calls sendmail, qmail, etc?
actually, majordomo doesn't build the envelope; it calls the mail transport
of choice and feeds it a message with the desired header for recipient
consumption. sendmail/exim/postfix/whatever perform the expansion of the
list name into the full list of recipients, and build the envelope. unlike
postal mail, the envelope is stripped off and discarded at the recipient's
end before they get to see it.
what you're seeing sendmail do is build a list of recipients so it can make
delivery attempts to each of them; there will be an envelope for each one
(or for each target domain in the case of multiple users per domain, if
things are configured so as to permit that.)
> to go check out the RFC's mentioned.
the ancestral RFCs, 821 (replaced by 2821) and 822 (replaced by 2822) may
be easier to follow than the newer ones, if you're just after an
introduction. they are, however, obsolete, so be aware of that when you
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