The spam report comes back with a score of 1.4 which is very low and should not be filtered out by spam filters.
When I test it by actually sending it I receive it (I have created a test audience of just me), it is only when I send it using the preview feature. The only thing I can see that is different when I use the preview feature is that PowerMessanger puts what ever email address you are sending the email to in the from section of the email as well.