# Microsoft.AspNetCore.Identity.UI.Services

``` diff
+namespace Microsoft.AspNetCore.Identity.UI.Services {
+    public interface IEmailSender {
+        Task SendEmailAsync(string email, string subject, string htmlMessage);
+    }
+    public sealed class NoOpEmailSender : IEmailSender {
+        public NoOpEmailSender();
+        public Task SendEmailAsync(string email, string subject, string htmlMessage);
+    }
+}
```

