[Mailman-Developers] Subscrib user through email client withou notification

How can I subscribe an user to a mailman list through an email client, (using the listname-request commands), without them being notified and having to confirm the subscription? I know you can do this through the command line, but I want to be able to do it through a webmail client. Here is the command I used below.

subscribe password address=email@yahoo.com

-- Kory Wheatley Academic Computing Analyst Sr. Phone 282-3874 ######################################### Everything must point to him.