[Mailman-Users] reply includes "mailman-bounces" ... response to new subscriptions

[Dr. Jones]

I created a new list this morning, sent a test message to 5 close 
friends..and looked in my inbox to find 5 new messages from sender which 
includes "mailman-bounces@" as part of the address....

Why would Mailman address such a successfully added response this way?

Scott

-- 
Dr. Scott S. Jones
Hands-On Chiropractic 
IRC: irc.freenode.net #utah
Yahoo: sanchiro12