This article explains how to save an email template in Apple Mail and use it for new messages on Mac OS X Lion (10.7) and later.
How to Create Email Templates in Apple Mail
You don’t have to create a new email every time you send a standard email. While Apple Mail doesn’t have a dedicated message template feature, you can use drafts and other commands to keep your email as efficient as possible. Here’s how.
Open the Mail application on your Mac.
Click on Mailbox in the menu bar and select New Mailbox from the menu that appears.
