Further comment of mine (analysis) to narrow down the problem: 1. All emails are fetched from my mailserver (at my service-provider aon.at) 2. Difference of IMAP-Server settings: within Kmail it is: securemail.a1.net within Thunderbird it is: smail.a1.net o.k.--> Thunderbird does NOT produce the error "Mail-Server response: A000002 NO Authentication failed 3. So therefore I changed Kmail IMAP-Server to: smail.a1.net Result: Until NOW the error message does NOT appear Oh wait - just when typing this mail I get the error-message TOO although 'smail.a1.net' is active
Interesting: Official documentation of my service-provider for implementing email-account does NOT indicate 'smail.a1.net" (!!) Now I try as imap-server: imap.a1.net with port: 143 (out of official doc of A1.net-Provider Am Sonntag, 6. März 2022, 13:54:37 CET schrieb Herbert Schwarzer: > 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
