Remote deletion of mail and network settings on ios?

Question

iOS

In case an employee loses the phone, you need to be able to remotely reset the network settings (wifi / vpn) and delete mail accounts from the standard client.
What can be used to solve this problem?
So far, it only occurred to me through "find iphone", but for this you need to add your apple id. And there is another problem with the synchronization of photos on this account, and so on.
upd:
In addition to the loss, you also need to solve the following situation:
The employee left (not at the office), it turned out that he could no longer have access to the corp network and mail. It is necessary to remotely erase everything already available.

Answer 1

https://habrahabr.ru/post/277763/
Study.

Answer 2

is there no encryption on the iphone?

Answer 3

Why not just put "after the nth attempt to enter a wrong password" - erase everything?