Before you set up your Thunderbird to receive your mail, you will need to follow the instructions to this article: Set Up an Email Address in cPanel.
Setting Up your Email in Thunderbird 91
- On the Thunderbird Existing Email Setup page, do the following:
Click on the Configure Manually link.
- Enter your Full Name (this will be the name that will show on the email sent).
- Enter your email address and its password.
On the Manual Configuration Section, depending on if you like to set up your email using IMAP or POP3, use the following settings:
In the Outgoing server, make sure to select No Authentication Method from the dropdown.
- Incoming Server Ports
POP/ POP3: 993
- Outgoing Server Ports
POP/ POP3: 465
- Connection Security
Incoming: SSL/ TLS
Outgoing: SSL/ TLS or None
- Hostname: .example.com (Both for Incoming and Outgoing Servers)
IMAP or POP3 with SSL
Set Up an Email Address in cPanel
Incoming and Outgoing Servers for Email Clients
Thunderbird Documentation: Set up email