How to Add an Email Signature in Apple Mail

Apple Mail on macOS

1. Build and copy your signature on the Create page using the Copy as rich text button.
2. Open the Mail app, then in the menu bar click Mail, then Settings (older versions call this Preferences).
3. Click the Signatures tab.
4. In the left column, select the email account the signature belongs to.
5. Click the plus button below the middle column to create a new signature and give it a name.
6. Click into the right-hand preview box, select any placeholder text, and paste your signature (Cmd+V).
7. Uncheck Always match my default message font so the pasted formatting is preserved.
8. Use the Choose Signature menu at the bottom to assign it to the account, then close the window.

Mail on iPhone and iPad

1. Open the Settings app on your device.
2. Scroll down and tap Mail.
3. Tap Signature.
4. Type your signature, or choose Per Account to set a different signature for each mailbox.

Note: iOS Mail signatures are plain text only. They cannot include a photo, links, or formatting, so a short typed signature is the practical option on iPhone and iPad. For the full HTML signature with a photo and links, use Apple Mail on macOS.