HGK SMTP plugin reconfigures wp_mail() function to use SMTP instead of mail(). Particularly, it allows sending outgoing mail via Gmail or Google Apps accounts. The following options can be set from plugin’s admin panel: SMTP server address. SMTP server port. SMTP username and password. Whether or not SSL should be used. From: email address and Sender’s name for outgoing mail. Support Please feel free to contact us by visiting support page and leaving your feedback: http://www.ihagaki.com/wordpress/hgk-smtp-plugin/