New Outlook for Windows

The new Outlook for Windows is now the default mail app on Windows 11, replacing the classic Outlook desktop program. It uses the same web-based engine as Outlook on the web, so you install your signature by pasting the rendered signature (what it looks like), not raw HTML code.

Tip: If your window still has the old ribbon and a File menu, you are on classic Outlook — use our classic Microsoft Outlook guide instead. The two versions do not share signatures.

1Create and download your signature
1. Design and save your signature in Mirosign. (You need an active subscription to download — the download buttons stay disabled until your design is saved.)
2. Click Download HTML and open the downloaded file in Chrome, Edge or Firefox (avoid Safari, which can alter the formatting).
3. Click anywhere on the signature, press Ctrl + A to select it all, then Ctrl + C to copy.
2Open the signature settings
1. In the new Outlook, click the Settings gear icon (top right).
2. Go to Accounts → Signatures (in some builds this is under Mail → Compose and reply).
3. Click + New signature and name it Mirosign signature.
3Paste and set as default
1. Click inside the signature box and paste with Ctrl + V.
2. Under the defaults, set Mirosign signature for new messages (and replies/forwards if you wish).
3. Click Save, then start a new email to check it appears correctly.
Note: The new Outlook and classic Outlook keep separate signatures. If you switch back to classic Outlook, set the signature up there too.

Design your email signature