iPhone Mail downloads automatically even when set to Manual
Even though schedule is set to "Manual" and Push
is off, iPhone will still download mail even with the Mail app closed. This can
be verified by turning on Airplane Mode before opening Mail which would
otherwise initiate a manual download of mail. This has been a problem for years
and still occurs with iOS 13.3 which is the most recent version as of this
writing. How can this problem be solved?
iPhone 7, iOS 13