The underlying problem seems to be the one described in bug #404990.
The workaround mentioned in its 2nd comment, using PLAIN authentication method, fixes the problem.
The problem has nothing to do with KDE Wallet unlike the very misleading Kmail error -- that's why I'm not marking this bug as a duplicate.
The underlying problem seems to be the one described in bug #404990.
The workaround mentioned in its 2nd comment, using PLAIN authentication method, fixes the problem.
The problem has nothing to do with KDE Wallet unlike the very misleading Kmail error -- that's why I'm not marking this bug as a duplicate.