新手求助，如何发送邮件？

//mailTo接收邮件的邮箱地址，mailTitle邮件标题，mailContent邮件内容
private bool SendMailTo(string mailTo, string mailTitle, string mailContent)
        {
             newMail = new ();                            //新建邮件
            newMail.From = new MailAddress("hourglasscompany@");     //使用此邮箱发送邮件
            newMail.To.Add(new MailAddress(mailTo));                            //发送到指定邮箱
            newMail.Subject = mailTitle;                                       //邮件主题
            newMail.SubjectEncoding = System.Text.Encoding.UTF8;                //邮件主题编码
            newMail.Body = mailContent;                                         //邮件主体
            newMail.BodyEncoding = System.Text.Encoding.UTF8;                   //邮件主体编码
            newMail.IsBodyHtml = true;                                          //邮件主体是否使用html编码
            SmtpClient newClient = new SmtpClient("smtp.", 587);       //邮件服务器与端口，不同的邮件服务器对应的端口不同，具体端口可以自己百度或者Google一下
            newClient.EnableSsl = true;                                         //是否启用SSL加密
            newClient.Credentials = new NetworkCredential("xxx@", "*****");    //验证发送方，第一个参数是发送邮件的邮箱地址，第二个参数是这个邮箱密码
            try
            {
                newClient.Send(newMail);        //发送邮件
                return true;
            }
            catch (Exception)
            {
                return false;
            }
        }