How To Add Signature In Outlook 365. Type in signature in the search box at the top of the Settings panel. Sign in to Outlook on the web.
Accessing Office 365 Outlook Web App options 3. In the Settings window Click on Mail Compose and reply. First Log in to your Office 365 account and click on App Launcher icon.
A signature created or changed using Outlook for Office 365 will not transfer into the web app.
Design or modify your signature and click the save button at the top of the page. Create a New Email. Add signature in Office 365. Here select Admin Admin Centers Exchange.