How to Add a Signature in Outlook

Outlook Desktop (Windows/Mac)

1. Open File → Options → Mail → Signatures.
2. Click New, name the signature, and paste your HTML in the editor.
3. Set Choose default signature for New messages and Replies/forwards.
4. Click OK to save.

Outlook on the Web

1. Click the gear icon → Mail → Compose and reply.
2. Under Email signature, click New signature.
3. Paste your HTML signature and choose defaults.
4. Click Save.

Notes

• Outlook may modify HTML; prefer simple tables and inline styles.
• Host images externally; avoid embedding large data URIs.