ListCaster has plenty of features to keep users and list administrators happy. In addition to letting you attach files to your list mail, ListCaster includes simple file management capabilities. If you send a control message to the server for a specific file, the program will mail it to you. You can moderate lists, so that all messages receive approval from a moderator before going out to the group. A digest mode sends only summaries of discussions to users, and an automatic acknowledgement tool lets senders know their messages were received.
Administration is as easy as filling in data fields.