Use Mobile Locker in New Outlook

From your inbox, click New Email.

Click More Apps in the ribbon.

Right-click Mobile Locker.

Click Pin.

The Mobile Locker button should now appear on the ribbon. Click the three dots at the right if you don't see it.

When the Mobile Locker sidebar opens, click Get Started and follow the instructions to sign in.

Select Global as the region and input your email address and password. Click Continue.

Once signed in, you'll see the content on your Mobile Locker.

Start writing your email and ensure the cursor is where you want the links to go.

Navigate to the folder and find the file(s) you want to share. Click the checkbox below each one, then click Insert # links at the bottom of the plugin.

The links will appear in the email where your cursor was positioned. Continue writing the email and then click Send.