My employer recommended that I sign into our corporate email (Google hosted) via Exchange in the Mail app. I found out later that by doing so, I automatically enabled MDM or allowed them to set policies on my phone. (We learned this when another employee lost their iPhone and our IT department helped to lock it with their console.)
I did not install any profile or certificate and those tabs are empty/missing in my settings. Nothing stood out in the signin flow either (I certainly wouldn't have pressed "Allow your employer to access X" buttons.)
Does using Exchange automatically enroll you in an MDM policy? Is there a way to opt out or continue using Exchange w/o giving up my rights?