asp.net中简单的邮件发送,供取回密码!

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Net.Mail;
using System.Net.Mime;
using System.Net.Configuration;
namespace BCore.PubFunction
{
    public class MailHandler
    {
        public bool passwordToEmail(string usermail, string newpassword, string loginname)
        {
            try
            {
                System.Configuration.Configuration config = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("~/");
                MailSettingsSectionGroup settings = (MailSettingsSectionGroup)config.GetSectionGroup("system.net/mailSettings");
                System.Net.NetworkCredential credential = new System.Net.NetworkCredential(settings.Smtp.Network.UserName, settings.Smtp.Network.Password);
                System.Net.Mail.MailMessage msg = new System.Net.Mail.MailMessage();
                //msg.To.Add("itblackhole@163.com");//可以发送多人
                msg.To.Add(usermail);
                msg.from = new MailAddress("itblackhole@gmail.com", "*******", System.Text.Encoding.UTF8); /*3个参数分别是发件人地址（可以随便写），发件人姓名，编码*/