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：

1 using System.Net.Mail;

2 using System.Text;

3 using System.Net;

程序代码：

 1         MailMessage myMail = new MailMessage(); //创建邮件实例对象

 2         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

 3         

 4         myMail.To.Add(new MailAddress("")); //接收者

 5         myMail.Subject = "C#发送Email"; //邮件标题

 6         myMail.SubjectEncoding = Encoding.UTF8; //标题编码

 7         myMail.Body = "this is a test email!"; //邮件内容

 8         myMail.BodyEncoding = Encoding.UTF8; //邮件内容编码

 9         myMail.IsBodyHtml = true;     //邮件内容是否支持html

10         SmtpClient smtp = new SmtpClient(); //创建smtp实例对象

11         smtp.Host = "mail.sina.com"; //邮件服务器SMTP

12         smtp.Port = 25;                  //邮件服务器端口

13         smtp.Credentials = new NetworkCredential("", "123456"); //邮件服务器验证信息

14         smtp.Send(myMail); //发送邮件

使用Gmail邮箱发送邮件示例

 1         MailMessage myMail = new MailMessage();

 2         myMail.From = new MailAddress("");

 3         myMail.To.Add(new MailAddress(""));

 4         myMail.Subject = "C#发送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连接

14         smtp.DeliveryMethod = SmtpDeliveryMethod.Network; //Gmail的发送方式是通过网络的方式，需要指定

15         smtp.Send(myMail);

使用QQ邮箱发送邮件示例

 1         MailMessage myMail = new MailMessage();

 2         myMail.From = new MailAddress("");

 3         myMail.To.Add(new MailAddress(""));

 4         myMail.Subject = "C#发送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);