Postbox 3 includes a new feature that makes it easy to insert pre-generated responses into outgoing message replies.
You can manage canned responses within a dedicated Preferences panel, and when composing a message, responses have a dedicated toolbar button which allows you to choose from the list of responses that you have created. Here's how to create, configure, and use canned responses in Postbox.
To create a new canned response, go to:
On Mac: Postbox | Preferences | Composition | Responses
On Windows: Tools | Options | Composition | Responses
Next, click the Add or + button to open the editor drop down. Create your response and use the formatting buttons to style your entry. You can create additional responses by simply clicking the Add or + button again. To edit an existing response, click the Pencil button below the list.
Use the Responses toolbar icon to insert a response into the composition window.