Troubleshooting Gmail Email Sending Issue

Other Questions Gmail
1

Hey everyone, I’m running into a problem with sending emails through Gmail and I could really use some help. I’ve been trying to set up email functionality in my C# application, but I keep getting an error message that’s leaving me scratched.

Here’s what’s going on:

using System.Net.Mail;

try
{
    SmtpClient mySmtp = new SmtpClient("smtp.gmail.com", 587);
    mySmtp.EnableSsl = true;
    mySmtp.Credentials = new System.Net.NetworkCredential("[email protected]", "mypassword");

    MailMessage message = new MailMessage();
    message.From = new MailAddress("[email protected]");
    message.To.Add("[email protected]");
    message.Subject = "Test Email";
    message.Body = "This is a test email.";

    mySmtp.Send(message);
    Console.WriteLine("Email sent successfully!");
}
catch (Exception ex)
{
    Console.WriteLine("Error: " + ex.Message);
}

When I run this code, I get an error about authentication failing. I’ve double-checked my email and password, but it’s still not working. Any ideas what might be causing this? Thanks in advance for any help!

2

I’ve experienced this issue before and understand how annoying it can be. The problem isn’t with your code, but rather with Google’s tightened security measures.

I managed to solve it by enabling 2-Step Verification on my Google account and then generating an App Password specifically for my application. Instead of using your regular password, use the App Password in your NetworkCredential, ensuring that your complete email address (including @gmail.com) is set as the username.

Also, verify that you haven’t reached Google’s sending limits, as that could cause further issues. I hope this helps you resolve the problem.

3

hey, i had similar issues. google now requires an app password. try generating one from your google account’s security settings and use that instead of your usual pass. might fix it, cheers.

4

I’ve encountered similar issues before, and the solution turned out to be related to Google’s security settings rather than the code itself. In my experience, enabling 2-Step Verification and then generating an App Password for the application resolved the problem. Instead of using your regular password, replace it with the App Password and make sure you are using your full email address as the username. Also, check that you have not exceeded Gmail’s sending limits or triggered any security alerts on your account.