废话不多说，直接上代码
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Mail;namespace MailSender
{class Program{static string strHost = string.Empty;static string strAccount = string.Empty;static string strPwd = string.Empty;static string strFrom = string.Empty;static void Main(string[] args){strHost = "smtp.qq.com"; //STMP服务器地址strAccount = "xxx@126.com"; //SMTP服务帐号strPwd = "123456"; //SMTP服务密码strFrom = "xxx@126.com"; //发送方邮件地址Console.WriteLine(sendMail("cnkker@qq.com", "这是一封测试邮件", "这是一封测试邮件的正文内容") ? "Success" : "Unsuccess");Console.ReadLine();}/// <summary>/// 发送邮件/// </summary>/// <param name="to">接收方邮件地址</param>/// <param name="title">邮件标题</param>/// <param name="content">邮件正文内容</param>/// <returns></returns>/// <author>Jailu</author>/// <date>2007-04-10</date>static bool sendMail(string to, string title, string content){SmtpClient _smtpClient = new SmtpClient();_smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;//指定电子邮件发送方式_smtpClient.Host = strHost; ;//指定SMTP服务器_smtpClient.Credentials = new System.Net.NetworkCredential(strAccount, strPwd);//用户名和密码MailMessage _mailMessage = new MailMessage(strFrom, to);_mailMessage.Subject = title;//主题_mailMessage.Body = content;//内容_mailMessage.BodyEncoding = System.Text.Encoding.UTF8;//正文编码_mailMessage.IsBodyHtml = true;//设置为HTML格式_mailMessage.Priority = MailPriority.High;//优先级try{_smtpClient.Send(_mailMessage);return true;}catch(Exception ex){return false;}}}
}
)
)
