For what it’s worth I have a free outlook.comhttp://outlook.com address that I use with an office 365 account and it works decently. No reliability issues to speak of.
You also might consider an exchange environment that’s unix based with open source tools. I spend $5 per month on a cloud hosted instance and run SoGo on top of my mail server and gets all the active sync features for my phones and such. The IredMail setup is very simple and can spin up SoGo as part of it’s install.
Just another way to go but you should be ok with an office 365 account. I know of some big companies that have moved over. Others may have more related experience on a larger scale that’s more meaningful to you.
Hope that helps.
On Sep 29, 2016, at 1:23 PM, Troy Hergert