Step Wise Manual Adres mail settings for thunderbird
If you don't have a Adres mail address. you can create an email id from here then you can Adres 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, Adres Email address and Password then press Continue.
Click on the Manual config menu at bottom.
Enter Below Adres incoming server settings.
In incoming click on the dropdown menu and select IMAP.
Add server host :imap.poczta.onet.pl
Port: 993
select SSL/TLS
Enter Below Adres outgoing server settings.
In outgoing select SMTP.
Add server host :smtp.poczta.onet.pl
Port: 465
select SSL/TLS
Tap on Done. Now you are ready to use your Adres email account on your Thunderbird.