Send Email in ASP.NET Core 2.0+

EmailSender.cs

public class EmailSender : IEmailSender
    {
        public Task SendEmailAsync(string email, string subject, string message)
        {
            SmtpClient client = new SmtpClient("mail.mysite.com")
            {
                UseDefaultCredentials = false
            };
            client.Credentials = new NetworkCredential("noreply@mysite.com", "password");

            MailMessage mailMessage = new MailMessage
            {
                From = new MailAddress("noreply@mysite.com")
            };
            mailMessage.IsBodyHtml = true;

            mailMessage.Body = message;
            mailMessage.Subject = subject;

            mailMessage.To.Add(email);

            client.Send(mailMessage);

            return Task.CompletedTask;
        }
    }