1st Mac Mailer is mass-mailing software used by various e-commerce providers to deliver personalized email messages to their customers when they are needed to be notified about different events. These e-notifications vary from simple email notifications about product updates or new product releases to more complex newsletters and invoices. If you run a book store or a video rental, or if you are a self-employed individual who deals with lots of customers over the Internet, you will really appreciate this simple but yet powerful program. It is capable to deliver tens of thousands of personalized email messages per hour and gives you very flexible abilities to manage your mailing lists.