The problem with sending mail

Question

Hi all.
i am uisng visual studio 2003 to create simple web for sending mail base on the smtp server like that :
 

 

string smtpServer = "smtp.gmail.com";

string userName = "metilmarket";

string password = "i5kngyvx";

int cdoBasic = 1; 

int cdoSendUsingPort = 2; 

MailMessage msg = new MailMessage(); 

if (userName.Length > 0) 

{

msg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserver", smtpServer); 

msg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserverport", 25);

msg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusing", cdoSendUsingPort); 

msg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", cdoBasic);

msg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", userName); 

msg.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", password); 

} 

msg.To = "[e-mail]";

msg.From = "[e-mail]";

msg.Subject = "Subject";

msg.Body = "Message";

SmtpMail.SmtpServer = smtpServer;

SmtpMail.Send(msg);

lb1mgs.Text = "Your message has been successfully sent.";

But i am get error when i do the transaction with smtp :
errors like that :
The server rejected the sender address. The server response was: 530 5.7.0 Must issue a STARTTLS command  first. n35sm3933492wfa.15
 i am using gmail to test this application.
 Please give me suggestion , how to correct it ?
 
thanks in advances.
 
 

Answer 1

Hai...

yes u have to have the latest framework......


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Answer 2

Hai...

Please check your network credentials...the user name and password (i.e "metilmarket"; "i5kngyvx"; ) is incorrect..Try a give a valid gmail id and password...which u use...

System.Net.NetworkCredential("[e-mail]", "babilona");    and replace here....

And also...have a text file called something.txt in c: ........cause i have added it in my code...

 message.Attachments.Add(new Attachment("c:\\something.txt"));  as an attachment...

Later u can modify as per ur requirements...


Hope i made myself clear....Feel free to ask any doubts...

Answer 3

Dear.
are there another solution to send mail if i am don't use the library( System.Net.Mail;) and replace to (System.Web)?
because my server is using visual studio 2003 that it is has trouble according to sending mail.
thanks

Answer 4

Hai...

Please check your network credentials...the user name and password (i.e "metilmarket"; "i5kngyvx"; ) is incorrect..Try a give a valid gmail id and password...which u use...

System.Net.NetworkCredential("[e-mail]", "babilona");    and replace here....

And also...have a text file called something.txt in c: ........cause i have added it in my code...

 message.Attachments.Add(new Attachment("c:\\something.txt"));  as an attachment...

Later u can modify as per ur requirements...


Hope i made myself clear....Feel free to ask any doubts...

Answer 5

Dear krishna prasad.
many thanks to you.
To base your code , i am get the error like that :
The SMTP server requires a secure connection or the client was not authenticated. the server response was: 5.5.1 Authentication required
and i also change port that it is
smtp.Port = 465;
still get error : request time out :
 
thanks and best regards.
 

Answer 6

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Net.Mail;

namespace consolemail
{
    class Program
    {
        static void Main(string[] args)
        {
            MailMessage message = new MailMessage();
            SmtpClient smtp = new SmtpClient();
            System.Net.NetworkCredential AuthInfo = new
            System.Net.NetworkCredential("[e-mail]", "babilona");

            message.To.Add("[e-mail]");

            message.Subject = "Test Mail using System.Net.Mail";
            message.From = new MailAddress("[e-mail]");
            string str = "Hai to all";
            message.Body = str;
            bool isBodyHtml = true;
            message.IsBodyHtml = isBodyHtml;
            message.Attachments.Add(new Attachment("c:\\something.txt"));
            message.SubjectEncoding = System.Text.Encoding.UTF8;
            message.BodyEncoding = System.Text.Encoding.UTF8;


            message.Priority = MailPriority.High;



            smtp.Host = "smtp.gmail.com";
            smtp.UseDefaultCredentials = false;
            smtp.Credentials = AuthInfo;
            smtp.Timeout = 20000;
            smtp.Port = 587;
            // use stmp.port = 587 if 465 does not work.
            smtp.EnableSsl = true;
            smtp.DeliveryMethod = SmtpDeliveryMethod.Network;

            try
            {
                smtp.Send(message);
                Console.WriteLine("E-mail has been sent succesfully");
                Console.ReadLine();
                
            }

            catch (System.Net.Mail.SmtpException ex)
            {
                Console.WriteLine(ex.Message);
                Console.ReadLine();
            }
        }
    }
}


Hai use this peice of code..Hope it helps u...


If My Answer Helped u don't forget to mark it .....

Answer 7

Thanks you .
it is run well now (the error on incorrect password), i am test it run on framwork 3.5  , but when i am test it on framework 1.1  , it is not include the library System.Net.Mail.
it just have system.Web.mail.
 
thanks