Add an email signature in Outlook

New Outlook for Windows

1. Open Settings → Accounts → Signatures. Select the account, add a signature, paste your copied signature and save.
2. Choose defaults for new messages and replies/forwards. Some builds place this under Mail → Compose and reply.

Classic Outlook for Windows

1. Open File → Options → Mail → Signatures, or in a new message use Message → Signature → Signatures.
2. Create a new signature, paste the rendered content, choose the email account and defaults, then select OK. The downloaded .htm file is useful for managed installation; ordinary paste is simpler.

Outlook for Mac

1. Open Outlook → Settings (Preferences in older builds) → Signatures. Add a signature, paste, and select it under Choose default signature.

Outlook on the web

1. Open Settings → Accounts → Signatures, or Mail → Compose and reply on older interfaces. Paste and save, then set the new-message and reply defaults.

Menus vary by release and account policy. Instructions reviewed 19 Oct 2026. Official documentation ↗

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