C#发送Email邮件的方法解析

C#发送Email邮件方法之一：通过LocalHost  

public void SendMailLocalhost()
 ...{
 System.Net.Mail.MailMessage msg = new System.Net.Mail.MailMessage();
 msg.To.Add("[email protected]");
 msg.To.Add("[email protected]");
 /**//*
 * msg.To.Add("[email protected]");
 * msg.To.Add("[email protected]");
 * msg.To.Add("[email protected]");可以发送给多人
 */
msg.CC.Add("[email protected]");
 /**//*
 * msg.CC.Add("[email protected]");
 * msg.CC.Add("[email protected]");可以抄送给多人
 */
 msg.From = new MailAddress("[email protected]", "AlphaWu", System.Text.Encoding.UTF8);
 /**//* 上面3个参数分别是发件人地址（可以随便写），发件人姓名，编码*/
 msg.Subject = "这是测试邮件";//邮件标题
 msg.SubjectEncoding = System.Text.Encoding.UTF8;//邮件标题编码
 msg.Body = "邮件内容";//邮件内容
 msg.BodyEncoding = System.Text.Encoding.UTF8;//邮件内容编码
 msg.IsBodyHtml = false;//是否是HTML邮件
 msg.Priority = MailPriority.High;//邮件优先级

 SmtpClient client = new SmtpClient();
 client.Host = "localhost";
 object userState = msg;
 try
 ...{
 client.SendAsync(msg, userState);
 //简单一点儿可以client.Send(msg);
 MessageBox.Show("发送成功");
 }
 catch (System.Net.Mail.SmtpException ex)
 ...{
 MessageBox.Show(ex.Message, "发送邮件出错");
 }
 }

C#发送Email邮件方法之二：通过普通SMTP  

public void SendMailUseZj()
 ...{
 System.Net.Mail.MailMessage msg = new System.Net.Mail.MailMessage();
 msg.To.Add("[email protected]");
 msg.To.Add("[email protected]");
 /**//*
 * msg.To.Add("[email protected]");
 * msg.To.Add("[email protected]");
 * msg.To.Add("[email protected]");可以发送给多人
 */
 msg.CC.Add("[email protected]");
 /**//*
 * msg.CC.Add("[email protected]");
 * msg.CC.Add("[email protected]");可以抄送给多人
 */
 msg.From = new MailAddress("[email protected]", "AlphaWu", System.Text.Encoding.UTF8);
 /**//* 上面3个参数分别是发件人地址（可以随便写），发件人姓名，编码*/
 msg.Subject = "这是测试邮件";//邮件标题
 msg.SubjectEncoding = System.Text.Encoding.UTF8;//邮件标题编码
 msg.Body = "邮件内容";//邮件内容
 msg.BodyEncoding = System.Text.Encoding.UTF8;//邮件内容编码
 msg.IsBodyHtml = false;//是否是HTML邮件
 msg.Priority = MailPriority.High;//邮件优先级

 SmtpClient client = new SmtpClient();
 client.Credentials = new System.Net.NetworkCredential("[email protected]", "userpass");
 //在zj.com注册的邮箱和密码
 client.Host = "smtp.zj.com";
 object userState = msg;
 try
 ...{
 client.SendAsync(msg, userState);
 //简单一点儿可以client.Send(msg);
 MessageBox.Show("发送成功");
 }
 catch (System.Net.Mail.SmtpException ex)
 ...{
 MessageBox.Show(ex.Message, "发送邮件出错");
 }
 }

C#发送Email邮件方法之三：通过SSL的SMTP 

public void SendMailUseGmail()
 ...{
 System.Net.Mail.MailMessage msg = new System.Net.Mail.MailMessage();
 msg.To.Add("[email protected]");
 msg.To.Add("[email protected]");
 /**//*
 * msg.To.Add("[email protected]");
 * msg.To.Add("[email protected]");
 * msg.To.Add("[email protected]");可以发送给多人
 */
 msg.CC.Add("[email protected]");
 /**//*
 * msg.CC.Add("[email protected]");
 * msg.CC.Add("[email protected]");可以抄送给多人
 */
 msg.From = new MailAddress("[email protected]", "AlphaWu", System.Text.Encoding.UTF8);
 /**//* 上面3个参数分别是发件人地址（可以随便写），发件人姓名，编码*/
 msg.Subject = "这是测试邮件";//邮件标题
 msg.SubjectEncoding = System.Text.Encoding.UTF8;//邮件标题编码
 msg.Body = "邮件内容";//邮件内容
 msg.BodyEncoding = System.Text.Encoding.UTF8;//邮件内容编码
 msg.IsBodyHtml = false;//是否是HTML邮件
 msg.Priority = MailPriority.High;//邮件优先级

 SmtpClient client = new SmtpClient();
 client.Credentials = new System.Net.NetworkCredential("[email protected]", "password");
 //上述写你的GMail邮箱和密码
 client.Port = 587;//Gmail使用的端口
 client.Host = "smtp.gmail.com";
 client.EnableSsl = true;//经过ssl加密
 object userState = msg;
 try
 ...{
 client.SendAsync(msg, userState);
 //简单一点儿可以client.Send(msg);
 MessageBox.Show("发送成功");
 }
 catch (System.Net.Mail.SmtpException ex)
 ...{
 MessageBox.Show(ex.Message, "发送邮件出错");
 }
 }