Dear Debian-community,
irregularly an x-window pops up with message:
The server (my e-mail-server at my standard internet-provider) rejected the user-name and the password. Login failed. Server response is: A000002 NO Authentication failed.
BUT nevertheless my mail-client (Kmail) d o e s receive every message.
Serveral attempts by myside to locate the error - believed that problems in Debian 11 with kontact/kmail/akonadi/ could be the reason.
Anyway distribution-tests in my VM (Debian testing / Debian oldstable / Manjaro) lead to the same message.
So can I find the reason within my Debian 11 bullseye o r is this is a special behaviour within the mailserver at my provider ( A1.net in Austria)
This only appears within Linux - my (dual-boot) Windows 10 or my smartphone-app runs without such message !
Any help / tips appreciated.
Greetings Herbert