Proper way to asynchronously send an email in ASP.NET… (am i doing it right?)

Question

When a user registers on my website, I don\'t see why I need to make him \"wait\" for the smtp to go through so that he gets an activation email.

I decided I want to

Answer 1

Use this way-

private void email(object parameters)
    {
        Array arrayParameters = new object[2];
        arrayParameters = (Array)parameters;
        string Email = (string)arrayParameters.GetValue(0);
        string subjectEmail = (string)arrayParameters.GetValue(1);
        if (Email != "Email@email.com")
        {
            OnlineSearch OnlineResult = new OnlineSearch();
            try
            {
                StringBuilder str = new StringBuilder();
                MailMessage mailMessage = new MailMessage();

                //here we set the address
                mailMessage.From = fromAddress;
                mailMessage.To.Add(Email);//here you can add multiple emailid
                mailMessage.Subject = "";
                //here we set add bcc address
                //mailMessage.Bcc.Add(new MailAddress("bcc@site.com"));
                str.Append("");
                str.Append("");
                str.Append("");

                str.Append("");
                str.Append("");
                str.Append("");
                //To determine email body is html or not
                mailMessage.IsBodyHtml = true;
                mailMessage.Body = str.ToString();
                //file attachment for this e-mail message.
                Attachment attach = new Attachment();
                mailMessage.Attachments.Add(attach);
                mailClient.Send(mailMessage);
            }

    }


  protected void btnEmail_Click(object sender, ImageClickEventArgs e)
    {
        try
        {
            string To = txtEmailTo.Text.Trim();
            string[] parameters = new string[2];
            parameters[0] = To;
            parameters[1] = PropCase(ViewState["StockStatusSub"].ToString());
            Thread SendingThreads = new Thread(email);
            SendingThreads.Start(parameters);
            lblEmail.Visible = true;
            lblEmail.Text = "Email Send Successfully ";
        }