class Postbox < Cask url 'http://www.postbox-inc.com/php/download.php?a=308m' homepage 'http://www.postbox-inc.com/' version '3.0.8' sha256 '2a80f6c79d29c8bb499cdaf5818e2e38000ddbb5f7cb73cc8476da74c6b6b199' link 'Postbox.app' end