How to Add Your Email Signature to Windows 10 Mail

To add your signature to Windows 10 Mail, copy it from htmlsig, open Mail's settings (gear icon), click Signature and paste it in using Keep Source Formatting.

Microsoft retired the Mail and Calendar apps for Windows 10 and 11 at the end of 2024 and replaced them with the new Outlook for Windows. If you've switched, follow How to add your signature to Outlook for Windows and web instead.

Add your signature to Windows 10 Mail

1. Open your signature on htmlsig.com in Chrome or Edge and click Open in New Tab.
2. Select the whole signature and copy it (Ctrl + C).
3. Open the Mail app.
4. Click the settings (gear) icon in the bottom-left corner.
5. Click Signature in the panel that opens on the right.
6. Choose which accounts the signature applies to and make sure Use an email signature is turned on.
7. Delete any existing text in the signature box, then right-click inside it and click the small arrow next to the paste option.
8. Choose Keep Source Formatting.
9. Click Save.

Pasting with a plain Ctrl + V can strip your signature's formatting. Always use Keep Source Formatting.