Thunderbird Community Forum

I've been trying to create and account on thunderbird with both my outlook and posteo emails but every time I click on 'create an account' it says:

Authentication error.

Unable to log in at server. Probably wrong configuration, username or password.

It showed me the same message last year when I tried to use thunderbird for the first time, and again now that I tried again thinking it was an issue that might have been fixed since then. I double check the configuration, username and password for both me emails but it doesn't want to got through. I tried it both on my computer with the desktop version and on my android phone, and neither works.

Is there anything I could do to fix this issue?

J'installe Thunderbird pour la première fois, je bloque sur la page " saisissez le mot de passe de votre compte de messagerie" j'ai noté ma mon adresse orange et mon mot de passe associé à cette adresse , mais il apparait un message d'erreur. Comment faire !!! Merci