The authentication is encrypted. This is exactly what "Allow Plaintext Authentication: no" means in the setup instructions.
Btw, you know were authentication is not encrypted? POP3. Doesn't help spammers that much, does it?
So, let me get this straight. You've watched half of the movie, which is intended to be seen in the 3D on the big screen, from a cam rip and you didn't like visuals? Why don't you go play Crysis in 640x480 with low quality and disabled physics then?