Please dont copy my stuff.

Category : Mac Mail

How to see the default font on Apple Mail – New Message Screen

Mail >Preferences > Fonts & Colors: Set Fixed-width font: to something you can see such as Helvetica 18 Select Use fixed-width font for plain text messages In Composing: Message Format: Plain Text Now every email you compose will default to Plain Text Helvetica 18 which my old tired eyes can see.  The recipient of the email will see it in their default plain text font not in the mega size you see.