首页 新闻 搜索 专区 学院

SmtpClient 由于连接方在一段时间后没有正确答复或连接的主机没有反应,连接尝试失败

0
悬赏园豆:20 [已解决问题] 解决于 2016-02-26 09:52

最近邮件发送总是提示发送失败,错误提示如下图:

 

 1 /// <summary>  
 2         /// 处审核后类的实例  
 3         /// </summary>  
 4         /// <param name="To">收件人地址[di zhi]</param>  
 5         /// <param name="From">发件人地址[di zhi]</param>  
 6         /// <param name="Body">邮件[you jian]正文[zheng wen]</param>  
 7         /// <param name="Title">邮件[you jian]的主题</param>  
 8         /// <param name="Password">发件人密码[mi ma]</param>  
 9         public SendMailAction(string To, string From, string Body, string Title, string Password, int port, string host)
10         {
11             mailMessage = new MailMessage();
12             mailMessage.To.Add(To);
13             mailMessage.From = new System.Net.Mail.MailAddress(From);
14             mailMessage.Subject = Title;
15             mailMessage.SubjectEncoding = Encoding.UTF8;
16             mailMessage.Body = Body;
17             mailMessage.IsBodyHtml = true;
18             mailMessage.BodyEncoding = System.Text.Encoding.UTF8;
19             mailMessage.Priority = System.Net.Mail.MailPriority.Normal;
20             this.password = Password;
21             this.port = port;
22             this.host = host;
23         }
24 
25         /// <summary>  
26         /// 发送邮件[you jian]  
27         /// </summary>  
28         public void Send()
29         {
30             if (mailMessage != null)
31             {
32                 smtpClient = new SmtpClient();
33                 smtpClient.UseDefaultCredentials = false;
34                 smtpClient.Credentials = new System.Net.NetworkCredential(mailMessage.From.Address, password);//设置[she zhi]发件人身份[shen fen]的票据  
35                 smtpClient.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
36                 smtpClient.Host = this.host;
37                 smtpClient.Port = this.port;
38                 smtpClient.EnableSsl = true;
39                 //smtpClient.Timeout = 180000;
40                 //smtpClient.SendCompleted += new SendCompletedEventHandler(CompletedMethod);//注册[zhu ce]异步[yi bu]发送邮件[you jian]完成时的事件[shi jian]  
41                 //smtpClient.SendAsync(mailMessage, mailMessage.Body);
42 
43                 smtpClient.Send(mailMessage);
44             }
45         }

 

 

 

 

KunLen的主页 KunLen | 初学一级 | 园豆:98
提问于:2016-02-23 11:02
< >
分享
最佳答案
0

邮件是否支持smtp服务,smtp服务打开没有

收获园豆:20
唯我独萌 | 小虾三级 |园豆:532 | 2016-02-24 09:10

不是这个问题,之前测试的时候是可以的,后面不行了,邮箱账户也没有问题

KunLen | 园豆:98 (初学一级) | 2016-02-24 18:34

@KunLen: 我发个demo吧

protected void Page_Load(object sender, EventArgs e)     {       SendEmail("867214862@qq.com", "test-title", "你好啊!");           }

    #region     /// <summary>     /// 发送邮件     /// </summary>     /// <param name="mailTo">要发送的邮箱</param>     /// <param name="mailSubject">邮箱主题</param>     /// <param name="mailContent">邮箱内容</param>     /// <returns>返回发送邮箱的结果</returns>     public static void SendEmail(string mailTo, string mailSubject, string mailContent)     {         // 设置发送方的邮件信息,例如使用网易的smtp         string smtpServer = "smtp.qq.com"; //SMTP服务器         string mailFrom = "2574146995@qq.com"; //登陆用户名         string userPassword = "zx147285";//登陆密码

        // 邮件服务设置         SmtpClient smtpClient = new SmtpClient();         smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;//指定电子邮件发送方式         smtpClient.Host = smtpServer; //指定SMTP服务器         smtpClient.Credentials = new System.Net.NetworkCredential(mailFrom, userPassword);//用户名和密码

        MailAddress from = new MailAddress("2574146995@qq.com", "红装", Encoding.UTF8);

        MailAddress to = new MailAddress("867214862@qq.com");

        MailMessage message = new MailMessage(from, to);         message.Body = "This is a test e-mail message sent by an application. ";         // Include some non-ASCII characters in body and subject.                message.BodyEncoding = System.Text.Encoding.UTF8;         message.Subject = "七夕节!";         message.SubjectEncoding = System.Text.Encoding.UTF8;

        smtpClient.Send(message);

        HttpContext.Current.Response.Write("ok");       

    }     #endregion

唯我独萌 | 园豆:532 (小虾三级) | 2016-02-25 08:46
清除回答草稿
   您需要登录以后才能回答,未注册用户请先注册