This tutorial goes over the basics of the Hubspot email tool. How to create a new one, choose an out of the box template, change the layout as well as some of the features that allow you to create your own branded email template
source

This tutorial goes over the basics of the Hubspot email tool. How to create a new one, choose an out of the box template, change the layout as well as some of the features that allow you to create your own branded email template
source