The server settings in Security Assist and Universal Email are for sending email only, not receiving them. When you enter your correct outgoing mail server info the script should send an email to the user's email address in their record.
If you are testing locally this might be part of the problem. Do you know that your local mail server is working? If so you should be able to just plugin the details for it in SecurityAssist. You will need to work with a mailserver that is known to be working and sending emails properly first.