I have a Galaxy S Captivate. I'm trying to set up my email and it won't work (User: firstname.lastname@example.org. Password: vincent1961). I get a message: Sign in incorrect: The attempt to sign in failed due to an invalid Email address, Password or incorrect settings. Please check your Email address, Password or settings on the web and try again.(301).
I tried manual setup, using Exchange. I get a message: Setup could not finish. Unable to connect server.
I logged in to the website using above info and it worked.