Step Wise Manual Libero mail settings for thunderbird
If you don't have a Libero mail address. you can create an email id from here then you can Libero 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, Libero Email address and Password then press Continue.
Click on the Manual config menu at bottom.
Enter Below Libero incoming server settings.
In incoming click on the dropdown menu and select IMAP.
Add server host :popmail.libero.it
Port: 143
select SSL/TLS
Enter Below Libero outgoing server settings.
In outgoing select SMTP.
Add server host :mail.libero.it
Port: 25
select SSL/TLS
Tap on Done. Now you are ready to use your Libero email account on your Thunderbird.