I want to see my emails in Mail but when i open up Mail it tells me to log in using an iCloud, Google, etc., email. I touch the iCloud one because I want to see the iCloud emails I have received. Once I touch it it tells me to login, so I login. Then it says how that email is already added to this iPhone. I know it already is but I want to see the emails. I recently downloaded the Gmail app, I don’t know if that has anything to do with the issue.
iPhone 7 Plus, iOS 13