Have you tried rebuilding mailboxes? Choose a mailbox, then the bottom of the Mailbox menu. I don¡¯t know if you can do many at once, but try it one at a time.
Greetings,
My Mail app suddenly opened only as a blank black rectangle; no mailboxes appeared. I tried closing, then reopening the app, with no change. I then shut down and rebooted the phone. When I reopened Mail, everything was gone from my Inbox and VIP mailboxes.
I can still send and receive email. Incoming hostname is ¡°¡±; outgoing is ".¡±
iOS version is 13.2.2.
Can I retrieve my vanished mail? If so, how? Restore from a backup?
Thanks for your help.
Cheers,
Marc