Invitation response bad interaction with autoreply

[Unionchurch]

If the admin has set an autoreply message for
the -request mailbox, the autoreply will be
sent to a new subscriber that is replying to
an invitation to join. This is undesirable because
the autoreply feature is typically used to
formulate a message like "If you intended
to send a new posting, you sent it to the
wrong address".

[http://sourceforge.net/tracker/index.php?func=detail&aid=968295&group_id=103&atid=100103]