ASP SmartMail: How To Authenticate The Form When It's Sent

I am using ASP SmartMail for an email submit form.

I have my form but cannot figure how to insert the server email authentication username and password.

http://www.aspsmart.com/aspSmartMail/


So far I have this ASP code which my HTML form goes to:

<%
On error resume next
Dim mySmartMail
Set mySmartMail = Server.CreateObject("aspSmartMail.SmartMail")

' Mail Server
' ***********
mySmartMail.Server = "mail.yourdomain.com"

' From
' ****
mySmartMail.SenderName = Request.Form("SenderName")
mySmartMail.SenderAddress = Request.Form("SenderAddress")

' To
' **
mySmartMail.Recipients.Add Request.Form("ToAddress"), Request.Form("ToName")

' Parameter
' *********
mySmartMail.Priority = Request.Form("Priority")

' Message
' *******
mySmartMail.Subject = Request.Form("Subject")

mySmartMail.Body = Request.Form("Body")

etc.. etc... -----------------------------