send email with authentication - works locally and not online

I have code in my VB file to send email from a form. It works great when I run it locally (I get the email right away). Once I post it on my webserver and run the page, everthing works but I never get the email.  Posted my code below if anyone can see if I am doing something wrong.

 
Imports System.Net.Mail
Partial Class clients_send_mms
Inherits System.Web.UI.Page
 

 

 
...