A little while ago, Microsoft started testing some new inking capabilities in the Windows 10 Mail and Calendar App with Windows Insiders. Those same features are now rolling out to all Windows 10 users and should now be showing up after visiting the Microsoft Store and updating to the latest version of the app (via MSPoweruser.)
We can see this feature on two of our Windows 10 devices here, and we must say that it is pretty cool. You can find the features in version 16005.10325.20091.0 of the Windows 10 Mail and Calendar App. To enjoy, simply tap on new mail, enter in who you are sending to, and then click on the Draw tab. You can then click in the body of the email, and click on on "Drawing Canvas" to ink your message. There are multiple pen types, and a highlighter to choose from, and also an eraser.
The inked messages are sent as a PNG file, and the recipient can download them as he/she pleases. It's a nice feature that shows off the power of Windows Ink, so be sure to update now, and let us know your thoughts in the comments below.