Additional comment: Now I have installed MATE-Desktop in Debian 11 a n d configured <thunderbird> as mail-client alternative solution -> no such message. (all messages are fetched from my mail-server / as with Kmail too :) ).
Herbert Am Sonntag, 6. März 2022, 11:16:42 CET schrieb Herbert Schwarzer: > 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

