Swiftpage Email offers a free service to check your email. The Swiftpage Spam Check will read and scan your email message just as a spam filter would. It will evaluate your message for possible spam infractions and then send back a response to your email address. A score based on the possible spam infractions along with a description of each spam infraction will be assigned to your email. The Spam Check classifies your emails into these four categories: safe, questionable, high risk, and spammy.
Use it at http://www.swiftpage.com/support/spamcheck.htm