How can I connect my company email to my phone, without giving further authority/access to my personal info etc?

The company I work for asked us to put our work emails on our personal phone, using our phones email app to do so.

I set it up but cancelled when I saw a message about having to give the company xyz access.

I can understand why this is in place from a sysadmin pov, must be for company devices, but this doesn't suit me at all.

I currently login via the ms outlook webpage which is inconvinient.

Is there …

access authority email etc personal phone privacy