With Pop/Auth email features, you can enjoy your own SMTP Server. Mobile users can now send and receive their mail from anywhere around the globe. For the mobile user, this is a great advantage because complicated access files no longer need to be updated and maintained. The email server maintains this information directly, without any intervention. To send email after moving from one IP to another, the mobile user need only check for new mail to gain access to sending email. There is a particular security feature built into Pop/Auth mail that will eliminate the open relay and closes a potential security hole.