einundzwanzig-portal/app/Http/Middleware/CustomEnsureEmailVerified.php

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Redirect;
use Illuminate\Support\Facades\URL;
use Symfony\Component\HttpFoundation\Response;

class CustomEnsureEmailVerified
{
    /**
     * Handle an incoming request.
     *
     * @param  \Closure(\Illuminate\Http\Request): (\Illuminate\Http\Response|\Illuminate\Http\RedirectResponse)  $next
     */
    public function handle(Request $request, Closure $next, $redirectToRoute = null): Response
    {
        if (! $request->user() ||
            (
                $request->user() instanceof MustVerifyEmail
                && ! $request->user()->public_key
                && ! $request->user()
                            ->hasVerifiedEmail()
            )
        ) {
            return $request->expectsJson()
                ? abort(403, 'Your email address is not verified.')
                : Redirect::guest(URL::route($redirectToRoute ?: 'verification.notice'));
        }

        return $next($request);
    }
}