Asp.Net实现发邮件

using System;
using System.Net.Mail;
using System.Net;

/// <summary>
/// 说明：在.net2.0以上版本中发送电子邮件的方法示例
/// 用到的类主要位于System.Net.Mail和System.Net命名空间下
/// </summary>
public class SendMail2
{
    public SendMail2()
    {
    }

    /// <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="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 void Send(string to, string from, string subject, string body, string userName, string password, string smtpHost)
    {
        MailAddress from = new MailAddress(from);
        MailAddress to = new MailAddress(to);
        MailMessage message = new MailMessage(from, to);
        message.Subject = subject;//设置邮件主题
        message.IsBodyHtml = true;//设置邮件正文为html格式
        message.Body = body;//设置邮件内容
        SmtpClient client = new SmtpClient(smtpHost); 
        //设置发送邮件身份验证方式
        //注意如果发件人地址是[e-mail]，则用户名是abc而不是[e-mail]
        client.Credentials = new NetworkCredential(userName, password);
        client.Send(message);
    }
}