> what happens if you send a mail to a list that you are not subscribed to? If it is a ticalc.org list and you are subscribed to another ticalc.org list, it will be sent as requested. If you are not on any ticalc.org lists (which is obviously not the case), the letter will be returned to you unsent. If it's a ti.com list, you can post reguardless. If it's another server, contact the server's administrator.