Comments by GodEner (Top 1 by date)

I forgot to insert the code on the What I've Tried Section. This is what I did into AccountController class:

public async Task<iactionresult> Register(RegisterViewModel model, string returnUrl = null)
{
ViewData["ReturnUrl"] = returnUrl;
if (ModelState.IsValid)
{
var user = new ApplicationUser { UserName = model.Email, Email = model.Email };
var result = await _userManager.CreateAsync(user, model.Password);
if (result.Succeeded)
{
_logger.LogInformation("L'utente ha creato un nuovo account con una nuova password.");

var code = await _userManager.GenerateEmailConfirmationTokenAsync(user);
var callbackUrl = Url.EmailConfirmationLink(user.Id, code, Request.Scheme);
await _emailSender.SendEmailConfirmationAsync(model.Email, callbackUrl);

//diallowed signin for self registration, email should be confirmed first
//await _signInManager.SignInAsync(user, isPersistent: false);
_logger.LogInformation("L'utente ha creato un nuovo account con una nuova password.");
return RedirectToConfirmEmailNotification();
}
AddErrors(result);
}
// If we got this far, something failed, redisplay form
return View(model);
}

NetcoreService class:

public async Task SendEmailBySendGridAsync(string apiKey, string fromEmail, string fromFullName, string subject, string message, string email)
{
var client = new SendGridClient(apiKey);
var msg = new SendGridMessage()
{
From = new EmailAddress(fromEmail, fromFullName),
Subject = subject,
PlainTextContent = message,
HtmlContent = message
};
msg.AddTo(new EmailAddress(email, email));
await client.SendEmailAsync(msg);

}

When I create a new user I pass to this part of code correctly, but as I've already said I can't find the mail in my inbox, neither in the spam.