Michael calls it on Chris Hanson's observation. Take note, emailers of the world. At work, I am forced to use Entourage as my Exchange client under OS X. One thing that is nice about Entourage is the preference that lets you turn off the formatted, Outlook/Exchange-type email that includes HTML, and have plain-text, Internet email, complete with quotes. It's not pure text; HTML mail still gets through, but it offers me enough of the plain-text, Internet email experience that I feel like I'm using a real email client.