Outgoing address in Bounce messages? (resend)

Same message but in Plain Text.

            I recently had a user forward me a message he received when
he tried sending a message to a majordomo list (prelaw-l).  His original
message was received by most of the members of the list, but he also
received an undeliverable report saying that "some or all of the
intended recipients could not be reached."  It then had a list of what
it SAID was the recipients that I couldn't reach, but every single one
of them was [email protected].  I'm assuming these are
simple addresses on the list that are no longer valid, but why does it
show the list outgoing address instead of the address that doesn't work
anymore?

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Aaron Smith                [email protected]
System Administrator   (269) 337-7496
Kalamazoo College