【轉】C#發送Email郵件

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

下面用到的郵件帳號和密碼都不是真實的，須要測試就換成本身的郵件帳號。

須要引用：

1 using System.Net.Mail;
2 using System.Text;
3 using System.Net;

程序代碼：

 1         MailMessage myMail = new MailMessage(); //建立郵件實例對象
 2         myMail.From = new MailAddress(""); //發送者，要和郵件服務器的驗證信息對應，不能隨便更改
 3         
 4         myMail.To.Add(new MailAddress("")); //接收者
 5         myMail.Subject = "C#發送Email"; //郵件標題
 6         myMail.SubjectEncoding = Encoding.UTF8; //標題編碼
 7         myMail.Body = "this is a test email!"; //郵件內容
 8         myMail.BodyEncoding = Encoding.UTF8; //郵件內容編碼
 9         myMail.IsBodyHtml = true;     //郵件內容是否支持html
10         SmtpClient smtp = new SmtpClient(); //建立smtp實例對象
11         smtp.Host = "mail.sina.com"; //郵件服務器SMTP
12         smtp.Port = 25;                  //郵件服務器端口
13         smtp.Credentials = new NetworkCredential("", "123456"); //郵件服務器驗證信息
14         smtp.Send(myMail); //發送郵件

使用Gmail郵箱發送郵件示例

 1         MailMessage myMail = new MailMessage();
 2         myMail.From = new MailAddress("");
 3         myMail.To.Add(new MailAddress(""));
 4         myMail.Subject = "C#發送Email";
 5         myMail.SubjectEncoding = Encoding.UTF8;
 6         myMail.Body = "this is a test email from gmail!<a href='http://www.sina.com.cn'>sina</a>";
 7         myMail.BodyEncoding = Encoding.UTF8;
 8         myMail.IsBodyHtml = true;
 9         SmtpClient smtp = new SmtpClient();
10         smtp.Host = "smtp.gmail.com";
11         smtp.Port = 587; //Gmail的smtp端口
12         smtp.Credentials = new NetworkCredential("", "123456");
13         smtp.EnableSsl = true; //Gmail要求SSL鏈接
14         smtp.DeliveryMethod = SmtpDeliveryMethod.Network; //Gmail的發送方式是經過網絡的方式，須要指定
15         smtp.Send(myMail);

使用QQ郵箱發送郵件示例

 1         MailMessage myMail = new MailMessage();
 2         myMail.From = new MailAddress("");
 3         myMail.To.Add(new MailAddress(""));
 4         myMail.Subject = "C#發送Email";
 5         myMail.SubjectEncoding = Encoding.UTF8;
 6         myMail.Body = "this is a test email from QQ!";
 7         myMail.BodyEncoding = Encoding.UTF8;
 8         myMail.IsBodyHtml = true;
 9         SmtpClient smtp = new SmtpClient();
10         smtp.Host = "smtp.qq.com";
11         smtp.Credentials = new NetworkCredential("", "123456");
12         smtp.Send(myMail);