Email Client Setup: Thunderbird 78

Mozilla Thunderbird 78 is an open-source email client and can be used as an alternative to Microsoft Outlook. It is available as a free download from their website. Listed below are the default incoming and outgoing mail servers that you will need in configuring your email account on Mozilla Thunderbird 78.

Non-SSL Settings

Outbound Server SMTP	smtp.fatcow.com	Port 587
Inbound Server IMAP	imap.fatcow.com	Port 143
Inbound Server POP	pop.fatcow.com	Port 110

With SSL Settings

Outbound Server SMTP	smtp.fatcow.com	Port 465
Inbound Server IMAP	imap.fatcow.com	Port 993
Inbound Server POP	pop.fatcow.com	Port 995

We can always provide our server settings and walk you through setting up your Thunderbird. However, we cannot help troubleshoot errors specific to Thunderbird.

Setting Up Thunderbird 78

Note: In the example below, we will be configuring the email account using SSL Hostnames for SMTP and IMAP protocols.

Step 1: Launch Mozilla Thunderbird. If you are launching it for the first time, you will directly see the window as shown below. If you have already configured some other email accounts on Thunderbird, you can click on File Menu > New > Get a New Mail account to see the window as shown below.

Click on Skip this and use my existing mail.

Step 2: Enter your name, email address, and password. Check Remember password and click on Configure manually.

Step 3: You will see that the system automatically pops up your non-SSL hostnames in the format smtp.domainname.com and imap.domainname.com.

Refer to the Email Client Settings above, and based on your preferences, enter the respective hostnames, port numbers, and encryption methods for the Incoming Mail and Outgoing Mail servers.

Step 4: As mentioned earlier, we are using SSL Hostnames for SMTP and IMAP protocols.

Click on Re-test after entering the settings to see if the configuration is successful.

Click on Done.

Step 5: You can now send and receive emails on your Email Client.

Note: If you see a TLS error while configuring SMTP on Thunderbird, you can refer to ThunderBird's Support article to resolve it.