A week or so ago, something happened to (corrupt?) my configuration.
I eventually discovered that Sent mail and Archive, for instance, were pointing to ordinary folders.
I have now set them back to the correct folders.
But the “Outbox” folder has dissapeared and if I click on the 3-line menu button, one of my ordinary folders has the “Box with an up arrow” icon next to it.
At the same time, I have a permanent error in my notifications “Failed to send some messages. IllegalStateException: No outbox_state entry for message with id 2833”
Can I do anything to fix this, or is it better to delete and do a clean install? I use MAPI, so the mails should still be on the server.