Hello friends! In this second part of our Visual Basic email tutorial, we will turn the simple sender into a usable Windows Forms application. You will enter the recipient, subject and message on the form instead of changing those values inside the source code. If you have not completed How to Send Email in Microsoft Visual Studio 2010 , start there. That lesson explains SMTP settings, permitted sender accounts, STARTTLS and the limitations of the legacy System.Net.Mail API. Here we will concentrate on the form, input validation and the send operation. We will retain the original controls and the step-by-step teaching flow, then improve the application so that a slow mail server does not freeze its interface. The sender account remains configured separately; allowing someone to type a dest ...