source: non-gtk/mailman/en/invite.txt@ 666

Your address "%(email)s" has been invited to join the %(listname)s
mailing list at %(hostname)s by the %(listname)s mailing list owner.
You may accept the invitation by simply replying to this message,
keeping the Subject: header intact.

You can also visit this web page:

    %(confirmurl)s

Or you should include the following line -- and only the following
line -- in a message to %(requestaddr)s:

    confirm %(cookie)s

Note that simply sending a `reply' to this message should work from
most mail readers.

If you want to decline this invitation, please simply disregard this
message.  If you have any questions, please send them to
%(listowner)s.