Add your own HTML e-mail signature in MacOS Mail
- Design your own HTML e-mail signature in your preferred HTML editor.
- Open MacOS Mail
- Press command + , for settings
- Go to the Signature tab
- Select desired mail account, click the + button, name it what ever you want and select it in the Choose Signature drop down.
- Quit MacOS Mail
- Go to this folder in Finder (shift+command+g):
macOS Monterey
~/Library/Mail/V9/MailData/Signatures
macOS Ventura
~/Library/Mail/V10/MailData/Signatures
- Find the XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX.mailsignature with current date and time and open it with TextEdit
- Paste and replace everything from <body> to the end of the file with your own html code and save.
- Right click on the file, choose Get info and tick the Locked property.
- Done!
