This problem seems to affect several users. Is there any chance that this problem may be fixed with an app update distributed by App Lounge, or by a patch version 4.1.x of /e/OS?
If not, is there a workaround? I have tried to describe two possible ones in /e/OS 4.1.1 error OAuth 2.0 on email server connection - #11 by Tentos, but I do not know whether they really work because I am not affected by the problem.
May users be informed about a workaround by a UnifiedPush message?