【转】C#发送Email邮件

转自：http://hi.baidu.com/bluesky_cn/item/8bb060ace834c53f020a4df2

下面用到的邮件账号和密码都不是真实的，需要测试就换成自己的邮件账号。

需要引用：

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

程序代码：

         MailMessage myMail = new MailMessage(); //创建邮件实例对象
         myMail.From = new MailAddress(""); //发送者，要和邮件服务器的验证信息对应，不能随便更改

         myMail.To.Add(new MailAddress("")); //接收者
         myMail.Subject = "C#发送Email"; //邮件标题
         myMail.SubjectEncoding = Encoding.UTF8; //标题编码
         myMail.Body = "this is a test email!"; //邮件内容
         myMail.BodyEncoding = Encoding.UTF8; //邮件内容编码
         myMail.IsBodyHtml = true;     //邮件内容是否支持html
         SmtpClient smtp = new SmtpClient(); //创建smtp实例对象
         smtp.Host = "mail.sina.com"; //邮件服务器SMTP
         smtp.Port = ;                  //邮件服务器端口
         smtp.Credentials = new NetworkCredential("", ""); //邮件服务器验证信息
         smtp.Send(myMail); //发送邮件

使用Gmail邮箱发送邮件示例

         MailMessage myMail = new MailMessage();
         myMail.From = new MailAddress("");
         myMail.To.Add(new MailAddress(""));
         myMail.Subject = "C#发送Email";
         myMail.SubjectEncoding = Encoding.UTF8;
         myMail.Body = "this is a test email from gmail!<a href='http://www.sina.com.cn'>sina</a>";
         myMail.BodyEncoding = Encoding.UTF8;
         myMail.IsBodyHtml = true;
         SmtpClient smtp = new SmtpClient();
         smtp.Host = "smtp.gmail.com";
         smtp.Port = ; //Gmail的smtp端口
         smtp.Credentials = new NetworkCredential("", "");
         smtp.EnableSsl = true; //Gmail要求SSL连接
         smtp.DeliveryMethod = SmtpDeliveryMethod.Network; //Gmail的发送方式是通过网络的方式，需要指定
         smtp.Send(myMail);

使用QQ邮箱发送邮件示例

         MailMessage myMail = new MailMessage();
         myMail.From = new MailAddress("");
         myMail.To.Add(new MailAddress(""));
         myMail.Subject = "C#发送Email";
         myMail.SubjectEncoding = Encoding.UTF8;
         myMail.Body = "this is a test email from QQ!";
         myMail.BodyEncoding = Encoding.UTF8;
         myMail.IsBodyHtml = true;
         SmtpClient smtp = new SmtpClient();
         smtp.Host = "smtp.qq.com";
         smtp.Credentials = new NetworkCredential("", "");
         smtp.Send(myMail);