How to send email from VB.NET

VB.NET using SMTP protocol for sending email . SMTP stands for Simple Mail Transfer Protocol . VB.NET using System.Net.Mail namespace for send mail . We can instantiate SmtpClient class and assign the Host and Port . The default port using SMTP is 25 , but it may vary different Mail Servers .In the following example shows how to send an email from a Gmail address.

The Gmail SMTP server name is smtp.gmail.com and the port using send mail is 587 . Here using NetworkCredential for password based authentication.




Imports System.Net.Mail
Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click
        Try
            Dim SmtpServer As New SmtpClient()
            Dim mail As New MailMessage()
            SmtpServer.Credentials = New _
		Net.NetworkCredential("username@gmail.com", "password")
            SmtpServer.Port = 587
            SmtpServer.Host = "smtp.gmail.com"
            mail = New MailMessage()
            mail.From = New MailAddress("YOURusername@gmail.com")
            mail.To.Add("TOADDRESS")
            mail.Subject = "Test Mail"
            mail.Body = "This is for testing SMTP mail from GMAIL"
            SmtpServer.Send(mail)
            MsgBox("mail send")
        Catch ex As Exception
            MsgBox(ex.ToString)
        End Try
    End Sub
End Class

You have to provide the informations like your gmail username and password , and the to address also.


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