Can't add an account for la poste.ney

Support
1

I tried to add an account for la poste.net. I get a message that the user or the password is wrong. I’m sure of them.

2

Please supply as much information as possible. Device make and model. Version of Android. Version of K-9 Mail. (“Latest” is not a version.) Exact wording of the error message. IMAP or POP3. Anything else relevant. The more information you provide, the more likely it is that someone can assist. Thanks.

3

K9 version 6.804
Android 13
The message is incomplete and disapears After a few seconds. It concerns imap.