To add a signature in Outlook on the web, build it here and copy it, then open Settings → Mail → Compose and reply, paste it into the signature editor, switch on the toggles for new messages and replies, and save. Here is the walk-through.
Step by step
- In the signature generator, fill in your details, choose a layout, and press Copy signature.
- In Outlook on the web, click the gear icon (Settings) at the top right.
- Choose Mail, then Compose and reply.
- In the Email signature box, give it a name if asked, then click into the editor and paste.
- Below the editor, turn on Automatically include my signature on new messages and, if you want, on replies and forwards.
- Click Save.
Open a new message to check the signature appears as expected.
Keeping desktop and web in sync
Because the web and app versions store signatures separately, the simplest way to keep them matching is to paste the same signature from the generator into both. If you ever update your details, update them in the generator and re-paste in each place.
To set yours up, open the email signature generator and copy your signature.