Enviar un correo Pop3 con ASP.NET

¿Como enviar un corre?

Les comparto como enviar un correo desde asp.net:

Imports System.Net.Mail

Dim Contrasena as String= ""
Dim Correo as String= ""
Dim Puerto as String= ""

Dim Host as String= ""

Dim SmtpServer As New SmtpClient()

Dim mail As New MailMessage()

Dim cont As String = Contrasena 

SmtpServer.Credentials = New _

Net.NetworkCredential(Correo , cont)

SmtpServer.Port = Puerto

SmtpServer.Host = Host

mail = New MailMessage()

mail.From = New MailAddress(Correo)

mail.To.Add(correo)

mail.Subject = "Correo de prueba "

mail.Body = "Correo de prueba"

SmtpServer.Send(mail)