I found that outlook for Mac was another example of MS not replicating their PC product. It was OK, but it wasn't the same. Kissing your sister.
You can use your @2016.com email addresses in Apple mail without changing anything. You need to setup the account with password etc, but that's a one-off. You can even access such accounts from both your Mac, using mail and your PC using Outlook.
Same with iOS devices. Their version of mail works just fine with non-Apple mail domains. So if you set them accounts from your @2016.com accounts.
To illustrate I have three e-mail accounts (
[email protected]) and I access all three from my iMac, my iPad and my iPhone.
I betcha e-mail accounts is covered in the Missing Manuel, it is in my version.