Email Clients: Mozilla Thunderbird 3
How to setup a new email account in Mozilla Thunderbird email client version 3
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.