When in doubt, you can always refer to the user’s manual. Go to the signature generator, choose Apple Mail and follow the intuitive interface to create your own email signature.So, unless you want to give a slight Picasso vibe with an abstract signature formatting, use another browser, or proceed at your own risk. I don’t want to point fingers, but this browser has the tendency of adding unnecessary formatting to signatures. If possible, don’t use the email signature generator with the Safari browser. To set up a professional email signature in Apple Mail, follow this short instruction: There’s no longer any need to browse through the file system or paste HTML code directly into text files. : We’ve updated our free email signature generator with a dedicated option for Apple Mail. How to add an HTML email signature in Apple Mail – the easy way