Send asynchronous mail using asp.net

Sending e-mail is an important and common feature in ASP.Net (through the system.net.mail namespace). In this article, I will show how to send asynchronous mail, which is used, for example, to send bulk e-mail. ASP.Net includes the feature of asynchronous mail.

Following is an example of sending asynchronous mail:

    public void SendAsyncMail()
    {
        MailMessage mail = new MailMessage();

        mail.From = new MailAddress("Enter from mail address");
        mail.To.Add(new MailAddress("Enter to address #1"));
        mail.To.Add(new MailAddress("Enter to address #2"));
        mail.Subject = "Enter mail subject";
        mail.Body = "Enter mail body";

        SmtpClient smtpClient = new SmtpClient();
        Object state = mail;

        //event handler for asynchronous call
        smtpClient.SendCompleted += new SendCompletedEventHandler(smtpClient_SendCompleted);
        try
        {
            smtpClient.SendAsync(mail, state);
        }
        catch (Exception ex)
        {
            
        }
    }
    void smtpClient_SendCompleted(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
    {

        MailMessage mail = e.UserState as MailMessage;

        if (!e.Cancelled && e.Error!=null)
        {
            message.Text = "Mail sent successfully";
        }
    }

MSDN link : http://msdn.microsoft.com/en-us/library/system.net.mail.smtpclient.aspx

Video Tutorial : http://www.asp.net/learn/videos/video-420.aspx

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