MailMergeAppMailMergeApp 
The latest version of MailMergeApp is 1.6 on Mac Informer. It is a perfect match for E-mail in the Communication category.
MailMergeApp is a powerful and user-friendly AppleScript Studio application designed to simplify the process of creating personalized 'merged' mailings. By seamlessly integrating with the built-in Address Book and Email programs in Mac OS X, this app makes it incredibly easy to send customized emails to your contacts.
One of the standout features of MailMergeApp is its use of the Mac OS X Address Book as your contact list. If you're already using Address Book, your mail list is automatically populated and ready to go. Simply type your message, customize it with dynamic tags (like name, phone number, email, and address), and let the app do the rest. The app will automatically replace these tags with the relevant information for each contact, ensuring that every email feels personal and tailored.
Ideal for developers, small business owners, or anyone looking to send bulk personalized emails without the need for expensive, complex software, MailMergeApp offers a full-featured demo mode that lets you send up to 10 customized emails at a time. Registered versions allow you to send an unlimited number of personalized emails per batch. Say goodbye to generic "Dear Customer" emails and hello to personalized, engaging communications!