I cannot read the text. Converting to English may help. However, it appears there is an authentication issue, so using another email client with the same account setup will likely produce the same error, since all Thunderbird does is pass the information you entered to the email host and then display the response from the email host. Posting a screenshot of your account server setup may prove useful.

You understand my problem.

2 pictures added

when re-install with Orange for Thunderbird it is automatocally made by your app. Therefore i can't understand what append to fail

best regards.

Please post the screenshot for SMTP server info. Your error is on sending, not receiving. Is the port 465? Do you have full email address as user? Seeing the screenshot may help. The error code is indicating you do not have the proper email id and password.

Try these settings: smtp.orange.fr on port 587, STARTTLS security, authentication = normal password, User Name = email address.

1-response mail 1: my smtp serveur info image 1 2-I set your config: image 2

3- result of your config: image 3. It's send nothing but error.

"connection losted during transaction...."

no luck

best regard

Try again, with port 587, STARTTLS security, authentication = normal password. None of your pictures show that.

lundi 13th février, 2023 i return to default (automatic) serveur setting and all is fine. I don't know why ..... Thanks ... at this time .....