Aspnetboilerplate mail not working for gmail smtp

A common issue!

ASP.NET Boilerplate (ABP) provides a built-in email service that uses the System.Net.Mail namespace to send emails. However, Gmail's SMTP server has some specific requirements that need to be met in order to send emails successfully.

Here are some common issues and solutions to get ABP's email service working with Gmail's SMTP:

1. Enable Less Secure Apps: By default, Gmail's SMTP server requires you to enable "Less Secure Apps" to allow ABP to send emails. You can do this by going to your Google Account settings, clicking on "Security", and then toggling the switch next to "Less Secure Apps" to the "On" position.
2. Use the correct SMTP settings: Make sure you're using the correct SMTP settings for Gmail. The default settings in ABP are:
   • Server: smtp.gmail.com
   • Port: 587
   • Enable SSL: true
   • Username: Your Gmail address
   • Password: Your Gmail password
3. Use OAuth 2.0: If you're using a Gmail account that requires 2-factor authentication, you'll need to use OAuth 2.0 to authenticate with the SMTP server. You can use a library like Google.Apis.Auth to implement OAuth 2.0 authentication.
4. Check your Gmail account settings: Make sure your Gmail account is set up to allow sending emails from the ABP application. You can do this by going to your Google Account settings, clicking on "Accounts", and then clicking on "Other settings". Make sure the "Allow less secure apps" option is enabled.
5. Check your ABP configuration: Make sure your ABP configuration is set up correctly. You can check the EmailSettings class in your ABP project to ensure that the SMTP settings are correct.

Here's an example of how you can configure the email settings in ABP:

public override void ConfigureServices(IServiceCollection services)
{
    services.AddEmailService(options =>
    {
        options.SmtpServer = "smtp.gmail.com";
        options.SmtpPort = 587;
        options.EnableSsl = true;
        options.Username = "your-gmail-username";
        options.Password = "your-gmail-password";
    });
}

If you're still having issues, you can try enabling debug logging for the email service to see if there are any errors:

services.AddEmailService(options =>
{
    options.SmtpServer = "smtp.gmail.com";
    options.SmtpPort = 587;
    options.EnableSsl = true;
    options.Username = "your-gmail-username";
    options.Password = "your-gmail-password";
    options.DebugLogging = true;
});

This should give you more information about what's going wrong with the email sending process.