How to Add an HTML Email Signature in Outlook for Mac
Outlook for Mac split into two apps — “New Outlook” (now the default) and classic/legacy Outlook — and the signature settings differ between them. Here's how to add a designed signature in each, and how to get one with a photo or logo that renders without touching HTML.
Step by step
Find out which Outlook you're running
Look for the New Outlook toggle in the top-right of the window. On = New Outlook; off = classic. The signature settings live in different places in each.
New Outlook: open Settings → Signatures
In New Outlook: Outlook → Settings → Accounts → Signatures (or the Settings gear → Signatures). Create a signature, name it, and assign it to an account for new messages and replies.
Classic Outlook: open Preferences → Signatures
In classic/legacy Outlook: Outlook → Preferences → Signatures. Create a new signature and set the default per account under “Choose default signature.”
Type a simple signature, or paste a designed one
For plain text, just type. For a designed signature with a photo, logo, brand colors, and social icons, you'll paste HTML — and the images must be hosted, or they'll arrive broken.
Build it with hosted, email-safe images
Design the signature in Autograph so the images are hosted https URLs baked email-safe (why this matters), then use Copy HTML.
Paste into Outlook's signature editor
Click into the signature body and paste. If Outlook strips some styling on paste, re-paste or use “Paste and Match Style” off; the hosted images and core layout carry across.
Test to Gmail and Apple Mail
Send yourself a message and confirm the signature renders — images sharp, links clickable — in more than one client before you rely on it.
A designed signature, in Outlook or Apple Mail
Build it once in Autograph with hosted images, then Copy HTML into Outlook for Mac — or install it one-click into Apple Mail. No hand-coded HTML either way.
Download Autograph free See the templatesCommon questions
Where are signatures in New Outlook for Mac?
Outlook → Settings → Accounts → Signatures. New Outlook moved them from the old Preferences → Signatures location used by classic Outlook. If you don't see them, check whether the New Outlook toggle is on.
Why does my pasted signature lose its formatting in Outlook for Mac?
Outlook's editor can strip some CSS on paste. Use a signature built with email-safe, table-based HTML and hosted images (as Autograph generates) — the structure and images survive even when finicky inline styles don't.
Can Autograph install directly into Outlook for Mac?
No — its one-click install targets Apple Mail. For Outlook, design in Autograph and use Copy HTML, then paste into Outlook's signature settings.