Step Wise Manual Belgacom mail settings for thunderbird
If you don't have a Belgacom mail address. you can create an email id from here then you can Belgacom 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, Belgacom Email address and Password then press Continue.
Click on the Manual config menu at bottom.
Enter Below Belgacom incoming server settings.
In incoming click on the dropdown menu and select SMTP.
Add server host :relay.proximus.be
Port: 587
select SSL/TLS
Enter Below Belgacom outgoing server settings.
In outgoing select IMAP.
Add server host :imap.proximus.be
Port: 993
select SSL/TLS
Tap on Done. Now you are ready to use your Belgacom email account on your Thunderbird.