After a couple of years of these accounts working just fine with kmail, I’ve started getting a popup with this error whenever the app tries to sync the messages.
This has been happening for a couple of weeks now.
Login failed, server replied: A000002 NO AUTHENTICATE failed.
This happens with both of my outlook accounts.
Tried changing the account settings to SSL/TLS or STARTTLS with their corresponding ports, to no avail.
The activities page on these accounts shows “successful sync”.