Add your professional email signature to Apple Mail on Mac in 8 quick steps. Your changes save automatically.
You'll need a copied signature before following these steps
Follow along — it only takes about 2 minutes.
Launch the Mail app from your Dock, Applications folder, or by searching with Spotlight (Cmd+Space, then type "Mail"). Make sure you have at least one email account configured.
You should see: open the mail app on your mac
In the menu bar at the top of your screen, click "Mail" then select "Settings" (or "Preferences" on older macOS versions). You can also use the keyboard shortcut Cmd+Comma.
Look for: Mail > Settings
In the Settings window, click the "Signatures" tab. You'll see three columns: your email accounts on the left, signatures in the middle, and a preview area on the right.
Look for: the "Signatures" tab
Click the "+" button below the middle column to create a new signature. A new entry called "Signature #1" will appear in the list. You can also select a specific account first to associate the signature with it.
You should see: click "+" to add a new signature
Click on the default name "Signature #1" in the middle column and type a descriptive name like "Work Signature" or "Professional." This helps you identify it when assigning it to accounts.
You should see: name your signature
Click in the right-side preview area, select all existing content with Cmd+A, then paste your signature with Cmd+V. Important: make sure "Always match my default message font" is unchecked at the bottom to preserve your signature's formatting.
You should see: paste your signature in the preview area
Drag the signature name from the middle column onto your email account in the left column. Alternatively, select your account, then use the "Choose Signature" dropdown at the bottom to set it as the default.
You should see: assign the signature to your email account
Close the Settings window — your changes are saved automatically. Compose a new email to verify your signature appears correctly. If it doesn't show up, check that the right signature is assigned to your account.
You should see: close settings
This is the most common issue. If your signature looks plain after pasting, this checkbox (at the bottom of the signature preview) is overriding your formatting. Uncheck it and paste again.
Apple Mail lets you assign different signatures to different email accounts. Drag a signature onto a specific account in the left column, or use the dropdown to set defaults per account.
iOS Mail uses a separate signature setting. Go to Settings > Mail > Signature on your iPhone or iPad. Unfortunately, iOS only supports plain text signatures by default.
Apple Mail handles pasted images well, but if images aren't showing, try pasting the signature from Safari instead of another app. Open your copied signature HTML in Safari first, select all, copy, then paste into Mail.
Create a professional email signature in under 60 seconds with our free editor. No account required.