发送邮件事例

    protected void btnSend_Click(object sender, EventArgs e)
    {
        string rcvAddr = txtMailAddr.Text.Trim();
        if (rcvAddr.Length > 0)
        {
            //邮件信息
            MailMessage mail = new MailMessage();
            mail.From = new MailAddress("Socansoft<liaoyongjun@gmail.com>");
            mail.Subject = "测试邮件";
            mail.IsBodyHtml = true;
            mail.BodyEncoding = System.Text.Encoding.Default;
            mail.Body = "你好,这是自动发送的,请勿回复!";
            string[] rcvs = rcvAddr.Split(new char[] { ',' });
            foreach (string rcv in rcvs)
            {
                mail.To.Add(new MailAddress(rcv));
            }

            //SMTP服务器
            SmtpClient client = new SmtpClient();
            client.Host = "smtp.gmail.com";
            client.EnableSsl = true;

            //需要验证，用户名和密码要正确
            client.Credentials = new System.Net.NetworkCredential("liaoyongjun@gmail.com", "123456");

            //接收邮件的邮箱
            try
            {
                client.Send(mail);
                Response.Write("邮件成功发送到" + mail.To.ToString() + "<br>");
            }
            catch (Exception ex)
            {
                Response.Write(ex.Message + "<br>");
            }
        }
        else
        {
            Response.Write("联系邮箱不能为空");
        }
    }