Restrict native app email configuration for office 365

I came across a question from client while doing poc for Ems that how can we restrict users form configuring their office 365 account on native email app on mobile device.. As Intune MAM policies are applicable only on outlook app.. After searching a lot I found a relevant solution...

This article will help us to restrict mailbox configuration on email client on mobile device.. However will allow only on outlook application...

https://technet.microsoft.com/en-us/library/mt465747(v=exchg.150).aspx