IMPORTANT NOTE: The Outgoing Mailserver (SMTP) setting shown in this tutorial is incorrect.
The correct SMTP setting should be your ISPs outgoing mailserver, as your outgoing email must be sent via your ISPs mailserver.
eg. If you use Xtra as your ISP, your Outgoing Mailserver will be smtp.xtra.co.nz.
Please contact your ISP if you don't know what their Outgoing (SMTP) server setting is.