Setting up Thunderbird to use IMAP
Thunderbird is redesign of Netscape/Mozilla Mail and
can be found downloaded here
.
Note: Not all steps have screenshots.
1. Click on the Tools Menu and Select Account Settings. From the
Account Setting Window click Add Account. The Account Wizard will
open click on Email Account and click Next.

2. Fill in the Identity window and click next.
3. Under the Server Information window, ensure the fields display as
below:

4. In the User Names window enter your username and click Next.
5. In the Account Name window enter a suitable name for this account
and click Next.
6. On the next screen click Finish.
7. In the Account Settings window under the account you just created
click on Server Settings and ensure the settings match those below.

8. Click Advanced.
9. Under the IMAP tab enter "mail" in the IMAP server directory field
and click OK.

10. Click OK.
11. Select Outgoing Server(SMTP) in the left pane and enter the
following settings:

12. Click OK.