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Outlook on the web — 6 steps, ~2 minutes

Copy button included below
  1. 1

    Sign in to Outlook.com or Microsoft 365 and click the gear icon in the top right.

  2. 2

    Click "View all Outlook settings" at the bottom of the panel.

  3. 3

    Go to Mail → Compose and reply.

  4. 4

    Click into the signature box and paste your signature.

    Make your signature first →
  5. 5

    Tick "Automatically include my signature on new messages I compose" and, if you'd like, "...on messages I forward or reply to."

  6. 6

    Click Save.

Good to know

  • If your organization has roaming signatures turned on, the signature you set here can also appear in new Outlook for Windows or Mac — worth knowing if you spot one you didn't create.
  • Paste your signature directly rather than through a Word document first; Word formatting can bring along extra spacing or fonts that make it look off.