VB.NET - Request delivery receipt and read receipt - email trace¶

' Add EASendMail namespace
Imports EASendMail

Module Module1

    Sub Main()

        Try
            Dim oMail As New SmtpMail("TryIt")

            ' Set sender email address, please change it to yours
            oMail.From = "test@emailarchitect.net"

            ' Set recipient email address, please change it to yours
            oMail.To = "support@emailarchitect.net"

            ' Set email subject
            oMail.Subject = "test email from VB.NET, read receipt required"

            ' Set email body
            oMail.TextBody = "this is a test email sent from VB.NET project, do not reply"

            ' Request read receipt
            oMail.ReadReceipt = True

            ' Request both failure and success report
            oMail.DeliveryNotification = DeliveryNotificationOptions.OnFailure Or _
                DeliveryNotificationOptions.OnSuccess

            ' Your SMTP server address
            Dim oServer As New SmtpServer("smtp.emailarchitect.net")

            ' User and password for ESMTP authentication, if your server doesn't require
            ' User authentication, please remove the following codes.
            oServer.User = "test@emailarchitect.net"
            oServer.Password = "testpassword"

            ' Most mordern SMTP servers require SSL/TLS connection now.
            ' ConnectTryTLS means if server supports SSL/TLS, SSL/TLS will be used automatically.
            oServer.ConnectType = SmtpConnectType.ConnectTryTLS

            ' If your SMTP server uses 587 port
            ' oServer.Port = 587

            ' If your SMTP server requires SSL/TLS connection on 25/587/465 port
            ' oServer.Port = 25 ' 25 or 587 or 465
            ' oServer.ConnectType = SmtpConnectType.ConnectSSLAuto

            Console.WriteLine("start to send email ...")

            Dim oSmtp As New SmtpClient()
            oSmtp.SendMail(oServer, oMail)

            Console.WriteLine("email was sent successfully!")

        Catch ep As Exception

            Console.WriteLine("failed to send email with the following error:")
            Console.WriteLine(ep.Message)
        End Try

    End Sub

End Module