I think it's something to do with the content-encoding. Don't throw in
html. It is obeying the rule for "more info" and not for the line
ending "website," which is odd, something to do with the comma?
(Clutching at straws!)
Could it be the email client you are using.
Also is the "From" working correctly? With qmail it only works when
it's like "From: jon@doe.com\n"