How To Send Email Using Gmail In C# in 2023

How To Send Email Using Gmail In C#

After Google introduced a Two-step verification system in Google Accounts, it's not easy to use Gmail for your own personal usage so to solve this problem, I figured out a way to use Gmail as an email medium to send emails using C#. Now, we will see how we can do this in some short steps.

Step 1: Write C# code for Email Service

Open your Visual Studio, Below is the C# code for the email service, now you have to replace "Sender Email", "Reciever Email", "Email Subject", and "Email Body". Lastly, we have to retrieve the Google app password.

using System;
using System.Net;
using System.Net.Mail;

namespace EmailApp
{
    internal class Program
    {
        public static void Main(string[] args)
        {
            String SendMailFrom = "Sender Email";
            String SendMailTo = "Reciever Email";
            String SendMailSubject = "Email Subject";
            String SendMailBody = "Email Body";

            try
            {
                SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com",587);
                SmtpServer.DeliveryMethod = SmtpDeliveryMethod.Network;
                MailMessage email = new MailMessage();
                // START
                email.From = new MailAddress(SendMailFrom);
                email.To.Add(SendMailTo);
                email.CC.Add(SendMailFrom);
                email.Subject = SendMailSubject;
                email.Body = SendMailBody;
                //END
                SmtpServer.Timeout = 5000;
                SmtpServer.EnableSsl = true;
                SmtpServer.UseDefaultCredentials = false;
                SmtpServer.Credentials = new NetworkCredential(SendMailFrom, "Google App Password");
                SmtpServer.Send(email);

                Console.WriteLine("Email Successfully Sent");
                Console.ReadKey();
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.ToString());
                Console.ReadKey();
            }

        }
    }
}

Step 2: Create an app password

Firstly, make sure that your two-step verification is on. Now, go to the "Manage your Google Account", then click the "Security" tab.

Now, click the App passwords option. Finally, you can select a Custom name for your app.

An automated password will be created for you, copy that and paste it into your C# code. Make sure you save this password with you, because it will disappear, and you have to then recreate this app password again.

Conclusion:

This is the safest method to use Gmail as your email service, try it and comment if you get it working.👍

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See you next time,

@TechAE