Setting Google Apps Mail using Thunderbird
Enabling IMAP
Before setting up (or after setting up) Google Apps Mail with Thunderbird Mail Client, you must do the following:
- Log in to your Google Apps Mail Account with email username and password using a browser (I.E., Firefox, etc.)
- Go to Settings > Forwarding and POP/IMAP > Enable IMAP
- Click on "Save Changes" Button
Note: You might want to also click on Settings > General and Select "always use https" in the browser connection section at the bottom. That has no effect on Thunderbird but is a good way to help avoid cross-site scripting attacks* when logged into webmail using a browser.
*type of computer security vulnerability typically found in web applications which allow code injection by malicious web users into the web pages viewed by other users.

