1 ： 加这两个 using

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

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2 : 发送人 和 收件人的设置

            SmtpClient client = new SmtpClient("smtp.gmail.com", 587)
            {
                Credentials= new NetworkCredential("myEmailAddress@gmail.com", "myPassword"),
                EnableSsl= true
            };


            MailAddressfrom = new MailAddress(@"myEmailAddress@gmail.com", "myName");
            MailAddress to= new MailAddress(@"whereToSend@com.cn", "receiverName");
            MailMessage myMail= new System.Net.Mail.MailMessage(from, to);

           // set subject and encoding
           myMail.Subject = "Auto send email of route 's perfermance at sometime ";
           myMail.SubjectEncoding = System.Text.Encoding.UTF8;

　　　　　　 //如果要添加抄送

           MailAddress copy = new MailAddress("someone@.com.cn");
           myMail.CC.Add(copy);

3 ： 写邮件正文 ， 例子带一个表格 ，注意 换行用
, 而不是 " " , 如果用后者， 在outlook显示不出换行的效果。

            DataTable table = new DataTable();
            table.Columns.Add("ownerVendor", typeof(string));
            table.Columns.Add("priority", typeof(string));
            table.Columns.Add("aditionalParameter", typeof(string));



            table.Rows.Add("JJTEL", "3000", "30");
            table.Rows.Add("ARCA", "2000", "5");
            table.Rows.Add("SHINETOWN", "2000", "5");


            myMail.Body= @"Hi :" + "
" + " below is ." + "
" + @"";

foreach (DataRow row in table.Rows)
            {
                myMail.Body= myMail.Body + @"";
            }

            myMail.Body= myMail.Body + @"

            

                

                     
                

                    ASR
                

                    ACD
            

                
" +  row["ownerVendor"].ToString() +
   @"
                
" + row["priority"].ToString() +
  @"
                
" + row["aditionalParameter"].ToString() +
  @"
            
";

4 ： 其他设置

            myMail.BodyEncoding = System.Text.Encoding.UTF8;

            myMail.IsBodyHtml= true;                  //这句很重要

5 ： 发送

            client.Send(myMail);

6 ： 邮件的效果类似这样

Hi :
below is .

	ASR	ACD
JJTEL	3000	30
ARCA	2000	5
SHINETOWN	2000	5

标题名称：c#编程实现发email,用gmail邮箱-创新互联
文章起源：http://myzitong.com/article/cddchs.html