今天给大家带来我的网站发送465端口邮件的代码，带html样式哦

        /// <summary>
        /// 邮件服务器地址
        /// </summary>
        private static string MailServer = "smtp.163.com";
        /// <summary>
        /// 用户名
        /// </summary>
        private static string MailUserName = "*****";
        /// <summary>
        /// 密码
        /// </summary>
        private static string MailPassword = "******";
        public static bool SendTheEmail(string EmailTheme, string EamilContent,string ToEml)
        {
            try
            {
                System.Web.Mail.MailMessage mmsg = new System.Web.Mail.MailMessage();
                //验证  
                mmsg.Subject = "“Shunnet.top”提醒：" + EmailTheme.Trim();//邮件主题

                mmsg.BodyFormat = System.Web.Mail.MailFormat.Html;
                mmsg.Body = EamilContent;//邮件正文
                mmsg.BodyEncoding = Encoding.UTF8;//正文编码
                mmsg.Priority = System.Web.Mail.MailPriority.High;//优先级

                mmsg.From = MailUserName;//发件者邮箱地址
                mmsg.To = ToEml;//收件人收箱地址
                mmsg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1");
                //登陆名  
                mmsg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", MailUserName);
                //登陆密码  
                mmsg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", MailPassword);
                mmsg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserverport", 465);//端口 
                mmsg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpusessl", "true");
                System.Web.Mail.SmtpMail.SmtpServer = MailServer;
                System.Web.Mail.SmtpMail.Send(mmsg);
                return true;
            }
            catch (Exception ex)
            {
                LogHelper.Error("[邮件发送异常]" + ex.Message);
                return false;
            }
        }

        /// <summary>
        /// 给用户发送邮件提醒
        /// </summary>
        /// <param name="UserName"></param>
        /// <param name="UserStr"></param>
        /// <param name="AdminName"></param>
        /// <param name="AdminStr"></param>
        /// <returns></returns>
        public static string HtmlStr_AdminToUser(string UserName, string UserStr,string AdminName, string AdminStr,string TypeStr)
        {
            StringBuilder Html = new StringBuilder();
            Html.Append("<div class='emailtitle' style='border-radius: 5px;border:1px solid #eee;overflow: hidden;'>");
            Html.Append("    <h1 style='color:#fff;background: #3798e8;line-height:70px;font-size:18px;font-weight:normal;padding-left:40px;margin:0'>");
            Html.Append("        您在 <strong>Shunnet.top</strong> 上的“" + TypeStr + "”有回复啦");
            Html.Append("    </h1>");
            Html.Append("    <div class='emailtext' style='background:#fff;padding:20px 32px 40px;'>");
            Html.Append("");
            Html.Append("        <p style='color: #6e6e6e;font-size:15px;line-height:24px;'><strong style='color:#3798e8;'>" + UserName + "</strong> 您好!</p>");
            Html.Append("        <p style='color: #6e6e6e;font-size:15px;line-height:24px;'>");
            Html.Append("            您在 <strong>Shunnet.top</strong> 的" + TypeStr + ":");
            Html.Append("            <br>");
            Html.Append("        </p><p style='color: #009FCC;font-size:13px;line-height:24px;padding:10px 20px;background:#f8f8f8;margin:0'>");
            Html.Append(UserStr);
            Html.Append("        </p>");
            Html.Append("        <p style='color: #6e6e6e;font-size:15px;line-height:24px;'>");
            Html.Append("            <strong style='color:#3798e8;'>" + AdminName + "</strong> 给您回复了:");
            Html.Append("            <br>");
            Html.Append("        </p><p style='color: #009FCC  ;font-size:13px;line-height:24px;padding:10px 20px;background:#f8f8f8;margin:0'>" + AdminStr + "</p>");
            Html.Append("        <p style='font-size:15px;line-height:24px;'>");
            Html.Append("            欢迎再度光临");
            Html.Append("            <a href='https://www.shunnet.top'><strong>Shunnet.top</strong></a>");
            Html.Append("        </p>");
            Html.Append("        <p style='color: red;font-size:15px;line-height:24px;'>(此邮件由系统自动发出, 请勿回复。如有打扰，请见谅。)</p>");
            Html.Append("        <p>");
            Html.Append("            <div style='text-align:center;  font-size:15px; color: #6e6e6e;'>");
            Html.Append("                <span>“关注[顺网]微信公众号，了解更多更有趣的实时信息”<br></span>");
            Html.Append("                <div style='text-align:center; margin-bottom:20px;'>");
            Html.Append("                    <img src='https://blog.shunnet.top/Accessories/images/weixinMP.png' width='150' height='150'>");
            Html.Append("                </div>");
            Html.Append("            </div>");
            Html.Append("        </p>");
            Html.Append("    </div>");
            Html.Append("    <p style='color: #6e6e6e;font-size:13px;line-height:24px;text-align:right;padding:0 15px'>");
            Html.Append("        邮件发自:");
            Html.Append("        <a href='https://www.shunnet.top' style='color:#51a0e3;text-decoration:none'>Shunnet.top</a>");
            Html.Append("    </p>");
            Html.Append("</div>"); 
            return Html.ToString();
        }