[Plugin: Contact Form 7] CF 7 "Send All Fields"

I’ve added this plugin to my C7 form. Then on “Mail2” I’ve put this code in the mail message body for Mail(2).

[all-fields]

However when someone submits a form, I receive the email but it is blank. The plugin is enabled.

Any advice?

Thanks

http://wordpress.org/extend/plugins/contact-form-7/