Simple code for send email with C# language

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How do I send email in a simple application with C#?

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i need sample code to send email with c# language

Posted 4-Sep-16 1:22am

bejos3519

Updated 24-Feb-22 4:19am

Chris Maunder772.8K

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Afzaal Ahmad Zeeshan · Answer 1 · 2016-09-04T08:56:00

I wrote an article covering the entire concept of sending the emails in .NET framework using C# language. You can read about it here, Sending emails over .NET framework, and general problems – using C# code[^].

I also included a few of the errors and problems that you might encounter while programming the application for sending the emails. General code for sending the emails in C# is:

C#

// You should use a using statement
using (SmtpClient client = new SmtpClient("<smtp-server-address>", 25))
{
   // Configure the client
   client.EnableSsl = true;
   client.Credentials = new NetworkCredential("<username>", "<password>");
   // client.UseDefaultCredentials = true;

   // A client has been created, now you need to create a MailMessage object
   MailMessage message = new MailMessage(
                            "from@example.com", // From field
                            "to@example.com", // Recipient field
                            "Hello", // Subject of the email message
                            "World!" // Email message body
                         );

   // Send the message
   client.Send(message);

   /* 
    * Since I was using Console app, that is why I am able to use the Console
    * object, your framework would have different ones. 
    * There is actually no need for these following lines, you can ignore them
    * if you want to. SMTP protocol would still send the email of yours. */
    
   // Print a notification message
   Console.WriteLine("Email has been sent.");
   // Just for the sake of pausing the application
   Console.Read();
}

You can use this as a helper function or so. Update the values and if everything goes fine, the code would work!

OriginalGriff · Answer 2 · 2016-09-04T01:47:00

Solution 1

See here: Sending an Email in C# with or without attachments: generic routine.[^]

Posted 4-Sep-16 1:47am

OriginalGriff

Comments

bejos3519 4-Sep-16 8:17am

i got the message error : The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more at.
and then i also got email from gmail that related security system.
so, what can i do for it. please help me :'(

Garth J Lancaster 4-Sep-16 8:34am

this might be one thing to check https://support.google.com/accounts/answer/6010255?hl=en

bejos3519 4-Sep-16 8:50am

thanks friend...
that is usefull

bejos3519 · Answer 3 · 2016-09-04T02:14:00

C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Mail;
using System.Configuration;
using System.Threading.Tasks;

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                MailMessage mail = new MailMessage();
                SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");
                mail.From = new MailAddress("xxxxx@gmail.com");
                mail.To.Add("yyyyyy@yahoo.com");
                mail.Subject = "Halo Boss";
                mail.Body = "Halo Boss, Super";
                mail.Priority = MailPriority.Normal;

                System.Net.Mail.Attachment attachment;
                attachment = new System.Net.Mail.Attachment("D:\\Default.aspx");
                mail.Attachments.Add(attachment);
                SmtpServer.Port = 587;
                SmtpServer.Credentials = new System.Net.NetworkCredential("xxxxxx@gmail.com", "1234");
                SmtpServer.EnableSsl = true;

                SmtpServer.Send(mail);
                Console.Write("Email Terkirim");
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.ToString());
            }
        }
    }
}

i try do like above. but when i run, i got the message error : The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more at.
and then i also got email from gmail that related security system.
so, what can i do for it. please help me :'(

Simple code for send email with C# language

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