Make background service run in IIS even if IIS is idle

See more:

MVC

BackgroundWorker

IIS8

.NET6.0

I am implementing a background service, the problem is when I run it in local, it is working fine since the app is hit and running. But, in IIS, I deployed code and started the server in IIS. The background service is not running until I browse the site and is becoming idle when the server is idle.

I need the background service to run the very moment I restart or start the site.

My program.cs:

builder.Services.AddHostedService<FailedEmailManagmentService>();

I have registered it as well.

What I have tried:

using DocumentFormat.OpenXml.InkML;
using DocumentFormat.OpenXml.Office2016.Drawing.ChartDrawing;
using handbook.Controllers.HR;
using handbook.Data;
using handbook.Models.Mail;
using handbook.Repositories.Implementation;
using handbook.Repositories.Interface;
using handbook.ViewModel;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using System.Configuration;
using System.Globalization;
using System.Linq;

namespace handbook.BackgroundmailService
{
    public class EmailReminderSenderService : IHostedService, IDisposable
    {
        public static IConfiguration Configuration { get; set; }
        private Timer _timer;
        private readonly IOauthMailService _emailSender;
        private readonly ILogger<EmailReminderSenderService> _logger;

        public EmailReminderSenderService(IOauthMailService emailSender,
        ILogger<EmailReminderSenderService> logger, 
        IServiceProvider serviceProvider, IConfiguration configuration)
        {
            _emailSender = emailSender;
            _logger = logger;
            Services = serviceProvider;
            Configuration = configuration;
        }

        public IServiceProvider Services { get; }

        private static TimeSpan getJobRunDelay()
        {
            // Change the delay to run every 10 minutes
            return TimeSpan.FromMinutes(1);
        }

        public void Dispose()
        {
            _timer?.Dispose();
        }

        public Task StartAsync(CancellationToken cancellationToken)
        {
            _logger.LogInformation("Background service is started");
            _timer = new Timer(SendEmails, null, 
                               getJobRunDelay(), getJobRunDelay());
            return Task.CompletedTask;
        }
public async void SendEmails(object state)
        {
            my task
        }
public Task StopAsync(CancellationToken cancellationToken)
        {
            _logger.LogInformation("Background service is stopping");
            _timer?.Change(Timeout.Infinite, 0);
            return Task.CompletedTask;
        }
    }
}