I have an application which generates and sends MIME encoded messages (javax.mail.internet.MimeMessage) through an SMTP server. As part of the development process only, I'd like to be able to view these messages rather than send them (I know the sending works just fine, but there are restrictions on the domains within the dev environment which makes it a little difficult)

I thought the easiest way would be to save the text for each message to a directory, then point "an app" at the directory and check them over.

So the question is, what would be a good app to use? Is it as simple as configuring Outlook or another email client to do it?

Thanks