01
New Outlook and Outlook on the web.
- Click the gear icon at the top right to open Settings.
- Choose Accounts, then Signatures.
- Click New signature and give it a name, such as Work.
- Click into the box and paste your signature with Ctrl+V (Cmd+V on a Mac), or type one.
- Under Select default signatures, choose it for New messages and for Replies and forwards.
- Click Save.
02
Classic Outlook for Windows.
- Click File, then Options, then Mail.
- Click the Signatures button.
- Click New, name the signature and click OK.
- Click into the editing box and paste your signature. If it arrives as plain text, right-click and choose the Keep Source Formatting paste option, or press Ctrl+Shift+V.
- Under Choose default signature, pick the email account, then set New messages and Replies/forwards to your signature.
- Click OK. Repeat for each account you send from.
03
Outlook for Mac.
- From the Outlook menu, choose Settings, then Signatures.
- Click the plus button and name the signature.
- Paste your signature into the editing area.
- Under Choose default signature, set it for new messages and for replies and forwards, for each account.
- Close the window to save.
04
Outlook for iPhone and Android.
Open the app, tap your profile picture, then Settings, choose your account and tap Signature. The phone app stores a plain-text signature only: you can type your name and number, but images and formatting are dropped. Mail you send from Outlook on the web, including on your phone's browser, carries the full signature.
05
Making the signature itself.
Outlook's editor can make a basic text signature. For a designed one, with a photo, a logo, icons and layout that holds on a phone, make it in a generator and paste it in. The generator's Install page gives these same steps beside a Copy button, and its Outlook preview shows exactly what your recipients see.
Microsoft's own help page covers every version and is worth keeping open beside these steps, since Outlook moves its menus more often than most.