Simple Contact Form 0.1.8
The most recent update of the mnmlWP Simple Contact Form plugin introduces a new shortcode parameter. It allows you to send the form to as many recipients as you like.
The “mailto” parameter takes a single or comma separated list of email addresses. The email addresses will be validated once you include them in the shortcode. If the mailto parameter is not specified the form will be submitted to the admin email address of your WordPress installation by default.