Twas brillig at 13:52:20 04.12.2009 UTC-05 when mdorman@ironicdesign.com did gyre and gimble:
MAD> Err, this makes no sense. How can Mailman have any knowledge of,
MAD> and therefore "do anything" to any message that came by way of a
MAD> CC?
for each subscriber:
if subscriber.email in message.cc:
continue
...
# delivery
MAD> Now, your mail transfer agent might do duplicate suppression
No, it does not.
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