ASP.NET------邮件发送类

网站上用邮件服务进行收发邮件是再正常不过了，实现此功能之一的方法就是调用该类：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Mail;
using System.Net;

namespace Core.Common.Service
{
    /// <summary>
    /// 邮件发送
    /// </summary>
    public static class EMail
    {
        /// <summary>
        /// 发送邮件
        /// </summary>
        /// <param name="to">收件人邮件地址</param>
        /// <param name="from">发件人邮件地址</param>
        /// <param name="displayName">发件人显示名</param>
        /// <param name="subject">邮件主题</param>
        /// <param name="body">邮件内容</param>
        /// <param name="userName">登录smtp主机时用到的用户名,注意是邮件地址'@'以前的部分</param>
        /// <param name="password">登录smtp主机时用到的用户密码</param>
        /// <param name="smtpHost">发送邮件用到的smtp主机</param>
        public static void Send(string to, string from, string displayName, string subject, string body, string userName, string password, string smtpHost)
        {
            try
            {
                MailAddress fromaddress = new MailAddress(from, displayName);
                MailAddress toaddress = new MailAddress(to);
                MailMessage message = new MailMessage(fromaddress, toaddress);
                message.Subject = subject;//设置邮件主题
                message.BodyEncoding = System.Text.UnicodeEncoding.UTF8;
                message.IsBodyHtml = true;//设置邮件正文为html格式
                message.Body = body;//设置邮件内容
                message.Priority = MailPriority.High;
                SmtpClient client = new SmtpClient(smtpHost);
                client.DeliveryMethod = SmtpDeliveryMethod.Network;
                //设置发送邮件身份验证方式
                //注意如果发件人地址是abc@def.com，则用户名是abc而不是abc@def.com
                client.Credentials = new NetworkCredential(userName, password);
                client.Send(message);
            }
            catch(Exception ex)
            {
                DirectoryAndFile.SaveFile("abc.txt", ex.GetType().ToString());
            }
        }
    }
}