public async Task <IActionResult> SendVerificationEmail(IndexViewModel model) { if (!ModelState.IsValid) { return(View(model)); } ApplicationUser user = await userManager.GetUserAsync(User); if (user == null) { throw new CustomApplicationException($"Unable to load user with ID '{userManager.GetUserId(User)}'."); } string code = await userManager.GenerateEmailConfirmationTokenAsync(user); string callbackUrl = Url.EmailConfirmationLink(user.Id, code, Request.Scheme); string email = user.Email; await notificationSender.SendEmailConfirmationAsync(email, callbackUrl); StatusMessage = "Verification email sent. Please check your email."; return(RedirectToAction(nameof(Index))); }