What is this servlet for? From the one side it is a Java servlet implements classical message board. But from the another site it is a new concept. You do not need to go to particular web site for checking messages. All discussion will be locked within your mailbox. All you need is a mail clients supports HTML messages. How does it work? With the help of this servlet you can start a new discussion. You type your message and mail it to the people you want be joined to your discussion (including yourself). After that all you need is only check from time to time this letter from your mailbox. Of course when you do that you must be online and MailBoard servlet. The same servlet can serve many discussions and you can have different configurations for different discussions.