C#SMTP发送邮件在阿里云服务器上需要注意的问题

 1 /// <summary>
 2     /// 发送邮件
 3     /// </summary>
 4     /// <param name="bodyStr">邮件内容</param>
 5     /// <param name="title">邮件标题</param>
 6     /// <returns>返回结果，成功与否</returns>
 7     public static string SendMail(string bodyStr, string title)
 8     {
 9         SmtpClient smtpClient = new SmtpClient();
10         smtpClient.EnableSsl = true;
11         smtpClient.UseDefaultCredentials = false;
12         smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
13         smtpClient.Host = "smtp.qq.com";
14         smtpClient.Port = 587;//改用587端口
15         smtpClient.Credentials = new System.Net.NetworkCredential("000@qq.com", "abcdefg");
16         //密码不是QQ密码，是qq账户设置里面的POP3/SMTP服务生成的key
17         MailMessage mailMessage = new MailMessage("000@qq.com", "xxx@xxx.com");//from（发出邮箱）和to（目标邮箱）
18         mailMessage.Subject = title;//邮件标题 
19         mailMessage.Body = bodyStr;//邮件内容 
20         mailMessage.BodyEncoding = System.Text.Encoding.Default;//正文编码  
21         mailMessage.IsBodyHtml = true;//设置为HTML格式  
22         mailMessage.Priority = MailPriority.High;//优先级  
23         mailMessage.To.Add("xxx@xxx.com");
24         mailMessage.To.Add("aaa@xxx.com");
25         mailMessage.To.Add("bbb@xxx.com");
26         mailMessage.To.Add("ccc@xxx.com");//可以发送给多个人
27         try
28         {
29             smtpClient.Send(mailMessage);
30             return "发送成功";
31         }
32         catch (Exception e)
33         {
34             return "发送失败" + e.InnerException.Message;
35         }
36     }