Set margins in emails

Is there an easy way to set the right-hand margin in an email I create (HTML or Text), without resorting to writing HTML code?

Hello, unfortunately it’s not possible to setup a default margin other than using an HTML formatting in your messages or templates. However by using templates you can define a basic HTML template for use with all your future messages.

Navigate to Tools > Settings > Mail > Templates and Signatures to setup a new template.

Hope this helps,