Imports System.Net.Mail
Public Class Mailer
    Private Sub Mailer_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim Server, Port, User, Pass As String
        Server = txtServer.Text
        Port = txtPort.Text
        User = txtUser.Text
        Pass = txtPass.Text
    End Sub

    Private Sub btnSend_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSend.Click
        Dim Server, Port, User, Pass As String
        Server = txtServer.Text
        Port = txtPort.Text
        User = txtUser.Text
        Pass = txtPass.Text
        Dim message As System.Net.Mail.MailMessage
        Dim smtp As New System.Net.Mail.SmtpClient(Host:=Server, Port:=Port)
        If tckSsl.Checked = True Then
            smtp.EnableSsl = True
        Else
            smtp.EnableSsl = False
        End If
        message = New System.Net.Mail.MailMessage(txtFrom.Text, txtTo.Text, txtSubject.Text, txtMessage.Text)
        smtp.Credentials = New System.Net.NetworkCredential(userName:=User, passWord:=Pass)
        If tckLoop.Checked = True Then
            While 1 = 1
                smtp.Send(message)
            End While
        Else
            smtp.Send(message)
        End If
    End Sub
End Class