Emoji in emails should be used with great care because what the receiver sees can be very different from the emoji you entered. This isn’t Microsoft’s fault. It’s in the complex nature of emoji with different fonts etc.
The ‘take away’ is that emoji’s are great but keep in mind that they might not appear in exactly the same way as you do. Compare the emoji sent from Outlook for Windows with the same emoji on iPhone or Android devices.
Outlook for Windows
Here’s what we sent to various devices from the latest Outlook 2016 for Windows.
Original email from Outlook 2016 for Windows
iPhone 7
And it looks much the same on the iPhone 7
iPhone 7
iPhone 6 – smaller emoji
But the iPhone 6 shows a much smaller emoji with a big vertical space.
iPhone 6
Android 5
A Samsung Galaxy phone with Android v5 (Lollipop) doesn’t show at all
Android 5 (Lollipop)