Step Wise Manual LA-POSTE mail settings for thunderbird
If you don't have a LA-POSTE mail address. you can create an email id from here then you can LA-POSTE email login.
Open Thunderbird Software App. Click on Email
When you click on the email, pop-up Set UP an Existing Account Screen.
Enter Your name, LA-POSTE Email address and Password then press Continue.
Click on the Manual config menu at bottom.
Enter Below LA-POSTE incoming server settings.
In incoming click on the dropdown menu and select IMAP.
Add server host :imap.laposte.net
Port: 993
select SSL/TLS
Enter Below LA-POSTE outgoing server settings.
In outgoing select SMTP.
Add server host :smtp.laposte.net
Port: 587
select SSL/TLS
Tap on Done. Now you are ready to use your LA-POSTE email account on your Thunderbird.