Please follow the below steps to configure Thunderbird:
Step 1: Open Thunderbird and select the Tools menu. Click the Account Settings tab.
Step 2. From the new window press the Add Account button, then E-mail account and click Next.
Step 3: Enter your name as you would like it to appear in the From: field for all outgoing messages and the email address which the others will use to send email messages to you. Click Next.
Step 4: Set the incoming server to be of type POP3. The address is your domain name.
Step 5: Click Next and type in the username. Please use the full e-mail account name. Example: you@yourdomainname.com instead of you.
Step 6: After clicking the Next button, type in the name of the e-mail account as it will appear on your PC. Click Next, and then the Finish button.
Step 7: Click the Outgoing Server(SMTP) in the left pane. Use yourdomainname.com as Server name. Set the port to be 2525.
Then, check the username and the password and enter the full e-mail address as username.
Step 8: Click OK and you are done!
Make sure that you check your incoming e-mail messages before trying to send any. Our servers use the POP-before-SMTP scheme, which disallows sending messages without checking your mail.
In order to configure Thunderbird 3, you can follow the below steps:
Step 1 Open Thunderbird and select the Edit menu. Load the Account Settings tab.
Step 2 From the new window click on Account Actions and choose Add Mail Account.
Step 3 Enter your name as you would like it to appear in the From: field for all outgoing messages and the email address which the others will use to send email messages to you. Also supply the password for this email account. Then click Continue.
Step 4 At this point Thunderbird 3 will attempt to automatically detect and finalize the configuration for your incoming and outgoing server settings. Let the automatic configuration utility finish.
Step 5 Once finished click Edit.
Step 6 Change the username to the full email address for which you are setting up the account.
Step 7 Set the Incoming protocol to either POP or IMAP according to your preferences. The ports are default - 143 for IMAP and 110 for POP3. You can select STARTTLS from the drop-down menu.
Step 8 For Outgoing server select mail.yourdomainname.com. You can select STARTTLS from the drop-down menu. The default SMTP port is 25, but you can also use 2525.
Step 9 Click Re-test Configuration. If everything is entered correctly both Incoming and Outgoing servers should have green light displayed.
Step 10 Click Create Account.
