The basic advantages of this script is that at subscribe or unsubscribe, the user remains on the same page on which there was registration. He does not leave the registration page and sees only JavaScript confirmation message. Mail Machine is a great mailing list script that allows visitors to your website to subscribe and unsubscribe to your mailing list without any work from you. This is a great way to inform your visitors on what's happening, and bring them back. Easy to setup and customise.
Users can subscribe and unsubscribe themselves easily.
Features a message history and tracks the number of subscribers to the list. WWC Smartlist Manager is designed to allow Smartlist users an easy way to subscribe, unsubscribe, retrieve archives, and submit XCommands for a Smartlist mailing list as well as provides list member tracking. All they have to do is enter info, choose whether they want to sub or unsub and submit the request. This is a simple email list administrative script. You never need to even look at the source code.