Dim SMTP_CREDENTIAL As System.Net.NetworkCredential
        SMTP_CREDENTIAL = New System.Net.NetworkCredential("user_smtp", "password_smtp", "dominio.it")
        Dim theEmail As System.Net.Mail.MailMessage = New System.Net.Mail.MailMessage
        Dim theSender As System.Net.Mail.SmtpClient = New System.Net.Mail.SmtpClient()
        theSender.Credentials = SMTP_CREDENTIAL
        theSender.DeliveryMethod = Net.Mail.SmtpDeliveryMethod.Network
        theEmail.From = New System.Net.Mail.MailAddress("sender@email.it")
        theEmail.To.Add(New System.Net.Mail.MailAddress("receiver@dibiasi.it"))
        theEmail.Subject = "oggetto della mail"
        Dim theAttach As System.Net.Mail.Attachment
        Dim itAtt As String


        '# allegati della mail
        theAttach = New System.Net.Mail.Attachment("C:\Windows.old\Windows\boot.bmp")
        theEmail.Attachments.Add(theAttach)

        ' body html (qui dovresti inserire la struttura HTML della broschure)
        theEmail.IsBodyHtml = True
        theEmail.Body = "<center>NEWSLETTER</CENTER><BR/>test immagine in corpo email<br/><img src=""C:\Windows.old\Windows\boot.bmp""/>"""

        theSender.Host = "SMTP_IP_ADDRESS"
        theSender.Port = "25"
        Try
            theSender.Send(theEmail)
            MsgBox("Messaggio inviato correttamente", MsgBoxStyle.Information)
            theSender = Nothing
            theEmail.Dispose() : theEmail = Nothing
            Me.Close()
            Exit Sub
        Catch
            MsgBox(Err.Description)
        End Try