Thank you for the link, definatly got me started in the right direction. I mocked up a quick bit of code in my VB.Net app and so far so good...but... I keep getting a connection error stating that the server is not "responding correctly."

Do you know of any way to lookup the proper E-Mail Server to directly connect to based on the domain suffix of an E-Mail address? Maybe I am connecting to the wrong servername or maybe even the wrong port?

>There is a built-in smtp server in .net. You instantiate the smtpmail class and use localhost as the server name.
>
>A link: http://www.codersource.net/csharp_sending_emails.aspx