Linux Tutorials - Herong's Tutorial Examples - v5.42, by Herong Yang
Thunderbird Configuration for POP3S and SMTP
This section provides a tutorial example on how to configure Thunderbird to use POP3S (POP3 with SSL/TLS) with normal password for incoming emails and SMTP with no authentication for outgoing emails.
Configuring Thunderbird is also easy. But you need to match connection settings exactly to what are supported by the email server.
For example, my email server, running Postfix and Dovecot, supports the following by default:
So here is what I did to configure Thunderbird with above server settings.
1. On my email server, make sure that Postfix and Dovecot are listening on those ports. Note that POP3 with SSL/TLS is also called POP3S.
herong$ nmap -T4 192.168.1.100 PORT STATE SERVICE 25/tcp open smtp 995/tcp open pop3s
2. On my email server, make sure that the firewall is open for those ports.
herong$ sudo firewall-cmd --zone=public --list-all public (active) services: cockpit dhcpv6-client ftp http imap pop3 pop3s smtp smtps ssh
3. Now launch Thunderbird on the other computer.
4. Open "Set Up Your Existing Email Account" dialog box, by clicking "File > New > Existing Email Account".
5. Enter your name, email address and password.
6. Click "Configure manually". You see more settings.
7. Enter the following:
INCOMING: Protocol: POP3 Server: 192.168.1.100 Port: 995 SSL: SSL/TLS Authentication: Normal password Username: herong INCOMING: Protocol: SMTP Server: 192.168.1.100 Port: 25 SSL: None Authentication: No authentication Username:
8. Click "Re-test". Thunderbird will try to reach the email server and do some connection tests.
9. If the test is passed, click "Done" to save settings.
10. If you see the "Thunderbird failed to find the settings for your email account" warning, ignore it. And click "Advanced config" to save settings.
Configuration is done. You should be able to send new emails now.
See the next tutorial on retrieving emails from POP3S (POP3 with SSL/TLS) service.
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