The Use Authentication checkbox should be selected - now, type your CORRECT password! Upon successfully connecting you'll be prompted to click Continue. In the Incoming Server field replace 'plus.pop' with 'imap' and then click Continue. Don't worry, you're a subscriber and this was expected.
Type your e-mail address (including the domain) example = Type your password INCORRECTLY making it anything OTHER THAN the correct password.Type your name, as you'd like it to appear.
Note: This hint has only been tested and known to work on Mac OS X 10.6.6 and Mail 4.4 Build 1082. If you have tried and failed to configure the Apple e-mail client for your Yahoo Plus mail account here's a solution.
