private async Task <EmailResponse> ForgotMainPassword(IdentityUser user)
        {
            //gerar JWT para reset de senha
            var code = await _userManager.GeneratePasswordResetTokenAsync(user);

            //criar link para retorno
            var callbackUrl = Url.ResetPasswordCallbackLink(user.Id, HttpUtility.UrlEncode(code), Request.Scheme);

            //método de extensão de URL
            return(await _emailServices.SendEmailBySmtpAsync(user.Email, "Reset Password", callbackUrl));
        }