This is fantastic tool to make sure that you know wordpress is sending out mail. This also gives visibility into if your wordpress has been compromised by spammers/hackers or wordpress sending out unnecessary e-mails to your user, thus giving your site a bad name. The new feature e-mail addon also allows your to be TO, CC and BCC into the e-mail this way you can ensure you can use an independent e-mail address is receiving the same mail your user is. This plugin totally rocks and shows what wordpress has lacked for so long. Great vision by the plugin author! Many thanks!