Send email with multiple attachments using Multiple FileUpload control in ASP.Net 4.5

Here Mudassar Ahmed Khan has explained with an example, how to send email with multiple attachments using Multiple FileUpload control in ASP.Net 4.5 using C# and VB.Net. The multiple files to be send as attachments along with mail will be uploaded using ASP.Net 4.5 Multiple FileUpload control and will be dynamically added as attachment in the MailMessage class object without saving in any folder on disk. This article will make use of Gmail SMTP Mail Server for sending emails, to send email with Gmail SMTP Server, you will need to use an email address and password of a valid Gmail account and along with that you will need the Gmail SMTP Mail Server settings.