当tyr发送电子邮件时出错 [英] a have a error when tyr send email

问题描述

发送电子邮件时出错

 SqlConnection scon_forgott = 
  new  SqlConnection（ ConfigurationManager.ConnectionStrings [  MyConnectionString]。ToString（））; 
 
 
 
 scon_forgott.Open（）; 
 DataTable dt =  new  DataTable（）; 
 SqlDataAdapter da =  new  SqlDataAdapter（  select *来自tbl_Users，其中Email =' + a.Text +  '，
 scon_forgott）; 
 
 da.Fill（dt）; 
 
  if （dt.Rows.Count >   0 ）
 {
  string  newpass = Guid.NewGuid（）。ToString（）; 
  string  hashPass = FormsAuthentication.HashPasswordForStoringInConfigFile（newpass，  MD5）; 
 Classes.Users clsUsers =  new  Classes.Users（）; 
 DataSet ds = clsUsers.SelectRow_User（dt.Rows [ 0 ] [ 用户名]的ToString（））; 
 DataRow drRow = ds.Tables [  tbl_Users]。行[ 0 ]; 
 clsUsers.updatePasswordNew（ int  .Parse（drRow [  ID]。ToString（）），hashPass）; 
 MailMessage mail =  new  MailMessage（）; 
 mail.From =  new  MailAddress（  [e-mail]）; 
 mail.To.Add（ new  MailAddress（drRow [ 电子邮件]的ToString（）））。 
 mail.Subject =   subjectttttt; 
 mail.Body =   booooooooodddddyyyyyyyyy; 
 mail.IsBodyHtml =  true ; 
 SmtpClient smtp =  new  SmtpClient（  smpt .mydomains.com）; 
 smtp.Credentials =  new  NetworkCredential（  [e-mail]，  bIXSg1a8）; 
 smtp.EnableSsl =  false ; 
 smtp.Send（mail）; 
 Label lbl = LoginView1.FindControl（  lblError） as 标签; 
 lbl.ForeColor = Color.ForestGreen; 
 lbl.Text =  发送新通行证; 
} 
  else  
 {
 Label lbl = LoginView1.FindControl（   lblError） as 标签; 
 lbl.ForeColor = Color.Red; 
 lbl.Text =  找不到用户; 
} 
 

和我的错误

连接尝试失败，因为已连接派对在一段时间后没有正确回复，或者建立连接失败，因为连接主机...

如何解决它。

解决方案

该错误似乎与您的SMTP设置有关。您的SMTP服务器无法访问 - IP地址，用户名或密码错误。



另外SMTP客户端的端口应该是 25 （默认值），但你应该查看你的SMTP关于它的服务器。



你也可以尝试将 smtp.Timeout 的值增加到更高的值。

将EnableSsl更改为True，你需要smtp.Port属性.....什么是SMTP端口???



这样as：Gmail端口是587

 SmtpClient客户端=  new  SmtpClient（）; 
 client.Host =   smtp.gmail.com; 
 client.EnableSsl =  true ; 
 client.Credentials =  new  NetworkCredential（  [e-mail]， 您的密码）; 
  //   client.UseDefaultCredentials = False  
 client.Port =  587 ; 
  //   client.Timeout = 20000  
 client.Send（msg）; 

i have a error when send email

SqlConnection scon_forgott =
                           new SqlConnection(ConfigurationManager.ConnectionStrings["MyConnectionString"].ToString());



                       scon_forgott.Open();
                       DataTable dt = new DataTable();
                       SqlDataAdapter da = new SqlDataAdapter("select * from tbl_Users where Email='" + a.Text + "'",
                           scon_forgott);

                       da.Fill(dt);

                       if (dt.Rows.Count > 0)
                       {
                           string newpass = Guid.NewGuid().ToString();
                           string hashPass = FormsAuthentication.HashPasswordForStoringInConfigFile(newpass, "MD5");
                           Classes.Users clsUsers = new Classes.Users();
                           DataSet ds = clsUsers.SelectRow_User(dt.Rows[0]["UserName"].ToString());
                           DataRow drRow = ds.Tables["tbl_Users"].Rows[0];
                           clsUsers.updatePasswordNew(int.Parse(drRow["ID"].ToString()), hashPass);
                           MailMessage mail = new MailMessage();
                           mail.From = new MailAddress("[e-mail]");
                           mail.To.Add(new MailAddress(drRow["Email"].ToString()));
                           mail.Subject = "subjectttttt";
                           mail.Body ="booooooooodddddyyyyyyyyy";
                           mail.IsBodyHtml = true;
                           SmtpClient smtp = new SmtpClient("smpt.mydomains.com");
                           smtp.Credentials = new NetworkCredential("[e-mail]", "bIXSg1a8");
                           smtp.EnableSsl = false;
                           smtp.Send(mail);
                           Label lbl = LoginView1.FindControl("lblError") as Label;
                           lbl.ForeColor = Color.ForestGreen;
                           lbl.Text ="send new pass";
                       }
                       else
                       {
                           Label lbl = LoginView1.FindControl("lblError") as Label;
                           lbl.ForeColor = Color.Red;
                           lbl.Text = "user not found";
                       }

and my error
A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host ...
how to resolve it.

解决方案

The error seems to be related to your SMTP settings.Your SMTP server is not accessible - wrong IP address, username or password.

Also the port for SMTP client should be 25 (the default value) but you should check on your SMTP server about it.

You could also try to increase the value of smtp.Timeout to a higher value.

change EnableSsl to True, and you need the smtp.Port property..... what is the SMTP port???

such as: Gmail port is 587

SmtpClient client = new SmtpClient();
client.Host = "smtp.gmail.com";
client.EnableSsl = true;
client.Credentials = new NetworkCredential("[e-mail]", "your Password");
//client.UseDefaultCredentials = False
client.Port = 587;
//client.Timeout = 20000
client.Send(msg);

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