Outlook on the web will support S/MIME (Secure/Multipurpose Internet Mail Extensions) sign and encryption as sensitivity label outcome. Customer admins could use set-label advanced setting to define the label to have S/MIME sign or encryption or both, and emails with those labels applied will enforce S/MIME sign and encrypt accordingly.
Outlook for iOS is making it easier to find your contacts, files, and more. A new, customizable navigation bar at the bottom of Outlook is your destination for Mail, Calendar, Feed, Contacts and Files, in whatever order works best for you. The Floating Action Button also gets an update to make creating new items even easier.
Now there is clearer messaging and cleanup options when you run out of email storage
Now while writing an email you can reordering the tools, customizing your experience and making your most used actions even easier to reach
Now you can send an email as an attachment to another email.