You can manually add subscribers to the list. Enter the new subscriber E-mail address press the Subscribe button.
Feedback: If this option is set to ask Confirmation, all operations performed result in confirmation requests being sent to the specified subscriber address. If this option is set to Send Welcome, confirmation requests are not generated, and the subscription modes are changed immediately, but the Welcome and Good Bye messages are sent to subscribers when you unsubscribe a user or subscribe a new user. If this option is set to silently, no messages are sent to subscribers.
Single User: Use this field to enter an E-mail address of the user you want to subscribe to this list. A new subscriber address can be specified as an E-mail address with a comment, as John Smith firstname.lastname@example.org or email@example.com (John Smith), in this case the comment is stored the subscriber's real name. Click the Subscribe button to subscribe the specified address.