You can delete the email account from your iPhone if you use the right steps. To delete an email account, go to Settings > Mail > Accounts. Select the email account you want to delete and tap Delete Account.
On your iPhone, go to Settings > Mail, Contacts, Calendars > Tap the account you want to delete.Tap Delete Account and then confirm that you want to delete the account by tapping Delete Account again.
The easiest way to delete an email account from your iPhone is to go into the settings, then go into Mail, Contacts, Calendars. Then tap Accounts and then Delete Account.
The easiest way to delete an email account is to open up the Settings app on your iPhone and go to Mail, Contacts, Calendars. From there, tap Manage Accounts. Find the email account you want to delete and tap Delete Account.
The issue you are experiencing is most likely that the email has been marked as unread. To fix this, open the email and click on the three dots at the top right of your screen. This will allow you to mark the email as read.
To remove an account from your iPhone, go to Settings and tap on iCloud. Then, tap on “Delete Account” and enter the password for the account you want to delete.