Auto FollowUp has been made to work with additional plugins. Some of the added features included in this are:1. A 'subscribe by E-Mail-Adresse' script so users can add or remove themselves automatically from your lists by sending an E-Mail-Adresse. 2. A merge script which allows you to upload comma and pipe delimited text files and merge their fields with your AutoFollowUp databases. 3. A mailing list script which allows you to send to all users who check the 'add to mailing list' check box in your AutoFollowUp Forms. These additional scripts help make AFU one of the best selling scripts on our site! Buy it today.