[Mailman-Users] How do I supress/modify announcements of subscription to the list

[Nicholson James D]

I want to run an unmoderated/static list.  However, I want to send out the
first message to everyone and I don't want it to be the standard form
letter.  How do I suppress the announcement?  I don't really want people
messing with their accounts.  This is a very small list.