Linux Tutorials - Herong's Tutorial Examples - v5.37, by Dr. Herong Yang
Thunderbird Configuration for IMAPS and SMTP
Provides a tutorial example on how to configure Thunderbird to use IMAPS (IMAP over SSL) with normal password for incoming emails and SMTP with no authentication for outgoing emails.
If your mail server supports IMAPS (IMAP over SSL), you can also configure Thunderbird to use IMAPS for incoming emails.
For example, my email server, running Postfix and Dovecot, supports the following:
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 993/tcp open imaps
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 imaps 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: IMAP Server: 192.168.1.100 Port: 993 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 receive and send emails now.
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