Confirmation of list posting -- confirmation ID: $filename

The ietf.org mailing-list server has received a list posting from 
$sender to the $recipient email list
with the subject '$[msg["subject"]]'

As the sender address isn't subscribed to the list, and has not been
confirmed earlier, we have to request a confirmation of the address.
To confirm the address, send a message to $recipient,
with the same subject line as this message.

(Simply sending a 'reply' to this message should work from most email
interfaces, since that usually leaves the subject line in the right
form.  The reply's additional "Re:" is ok.)

If you do not wish your posting to the list to go through, simply
disregard this message.  Questions to $[conf.admin_address].