from the doc: '1st Mass Mailer is intended for sending requested email newsletters or notifications utilizing subscription-based mailing lists. This program allows you to create and manage a customer database and generate personalized messages from predefined templates using a variety of data fields such as Name, Age, Gender, Address, Country and so on. It lets you have for example order numbers, member IDs and other data in the database along with email addresses and names and use them to generate individual messages with order or membership status and so on. You just use macro substitution patterns, to be replaced with information from the database, for each customer, right before dispatching. You can also add your own custom fields to the database if you need to have more information on each customer. Using tab delimited or CSV format you can synchronize the program with virtually any database system such as Microsoft Access, Excel, SQL, Oracle and so on. You can use all the standard message formats like plain text, HTML or even create a rich content message in the Microsoft Outlook Express and export it into the program. The interface of the program is very simple and easy to learn - nearly all functions can be performed using hotkeys on the keyboard. This software is a handy tool for keeping feedback from your customers, its a mailing list manager, a sophisticated address book, with a built in database, and an email program.'