diff --git a/.env.example b/.env.example
index 41fd0ce4..15bd0ae7 100644
--- a/.env.example
+++ b/.env.example
@@ -208,6 +208,23 @@ MAIL_PASSWORD=null
 MAIL_FROM_ADDRESS="hello@example.com"
 MAIL_FROM_NAME="${APP_NAME}"
 
+# Registration anti-spam
+REGISTRATION_IP_PER_MINUTE_LIMIT=3
+REGISTRATION_IP_PER_DAY_LIMIT=20
+REGISTRATION_EMAIL_PER_MINUTE_LIMIT=6
+REGISTRATION_EMAIL_COOLDOWN_MINUTES=30
+REGISTRATION_VERIFY_TOKEN_TTL_HOURS=24
+REGISTRATION_ENABLE_TURNSTILE=true
+REGISTRATION_DISPOSABLE_DOMAINS_ENABLED=true
+REGISTRATION_TURNSTILE_SUSPICIOUS_ATTEMPTS=2
+REGISTRATION_TURNSTILE_ATTEMPT_WINDOW_MINUTES=30
+REGISTRATION_EMAIL_GLOBAL_SEND_PER_MINUTE=30
+REGISTRATION_MONTHLY_EMAIL_LIMIT=10000
+TURNSTILE_SITE_KEY=
+TURNSTILE_SECRET_KEY=
+TURNSTILE_VERIFY_URL=https://challenges.cloudflare.com/turnstile/v0/siteverify
+TURNSTILE_TIMEOUT=5
+
 AWS_ACCESS_KEY_ID=
 AWS_SECRET_ACCESS_KEY=
 AWS_DEFAULT_REGION=us-east-1
diff --git a/README.md b/README.md
index eded3fb6..2fd1100d 100644
--- a/README.md
+++ b/README.md
@@ -221,6 +221,7 @@ Operational runbook: `docs/feed-rollout-runbook.md`.
 
 - Upload UI v2 rollout, post-deploy monitoring, and rollback: `docs/ui/upload-v2-rollout-runbook.md`
 - Feed rollout and rollback: `docs/feed-rollout-runbook.md`
+- Registration anti-spam and email quota protection: `docs/registration-antispam.md`
 
 No automatic tuning is enabled in this phase.
 
diff --git a/app/Http/Controllers/Auth/RegisteredUserController.php b/app/Http/Controllers/Auth/RegisteredUserController.php
index 45b87e65..bc169bfa 100644
--- a/app/Http/Controllers/Auth/RegisteredUserController.php
+++ b/app/Http/Controllers/Auth/RegisteredUserController.php
@@ -2,24 +2,26 @@
 
 namespace App\Http\Controllers\Auth;
 
+use App\Jobs\SendVerificationEmailJob;
 use App\Http\Controllers\Controller;
-use App\Mail\RegistrationVerificationMail;
+use App\Models\EmailSendEvent;
 use App\Models\User;
-use App\Services\Security\RecaptchaVerifier;
-use Carbon\CarbonImmutable;
+use App\Services\Auth\DisposableEmailService;
+use App\Services\Auth\RegistrationVerificationTokenService;
+use App\Services\Security\TurnstileVerifier;
 use Illuminate\Http\RedirectResponse;
 use Illuminate\Http\Request;
-use Illuminate\Support\Facades\Cache;
-use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Hash;
-use Illuminate\Support\Facades\Mail;
+use Illuminate\Support\Facades\RateLimiter;
 use Illuminate\Support\Str;
 use Illuminate\View\View;
 
 class RegisteredUserController extends Controller
 {
     public function __construct(
-        private readonly RecaptchaVerifier $recaptchaVerifier
+        private readonly TurnstileVerifier $turnstileVerifier,
+        private readonly DisposableEmailService $disposableEmailService,
+        private readonly RegistrationVerificationTokenService $verificationTokenService,
     )
     {
     }
@@ -31,6 +33,8 @@ class RegisteredUserController extends Controller
     {
         return view('auth.register', [
             'prefillEmail' => (string) $request->query('email', ''),
+            'requiresTurnstile' => $this->shouldRequireTurnstile($request->ip()),
+            'turnstileSiteKey' => (string) config('services.turnstile.site_key', ''),
         ]);
     }
 
@@ -53,54 +57,77 @@ class RegisteredUserController extends Controller
     public function store(Request $request): RedirectResponse
     {
         $validated = $request->validate([
-            'email' => ['required', 'string', 'lowercase', 'email', 'max:255', 'unique:'.User::class],
+            'email' => ['required', 'string', 'lowercase', 'email', 'max:255'],
             'website' => ['nullable', 'max:0'],
+            'cf-turnstile-response' => ['nullable', 'string'],
         ]);
 
-        if ($this->recaptchaVerifier->isEnabled()) {
-            $request->validate([
-                'g-recaptcha-response' => ['required', 'string'],
-            ]);
+        $email = strtolower(trim((string) $validated['email']));
+        $ip = $request->ip();
 
-            $verified = $this->recaptchaVerifier->verify(
-                (string) $request->input('g-recaptcha-response', ''),
-                $request->ip()
+        $this->trackRegisterAttempt($ip);
+
+        if ($this->shouldRequireTurnstile($ip)) {
+            $verified = $this->turnstileVerifier->verify(
+                (string) $request->input('cf-turnstile-response', ''),
+                $ip
             );
 
             if (! $verified) {
                 return back()
                     ->withInput($request->except('website'))
-                    ->withErrors(['captcha' => 'reCAPTCHA verification failed. Please try again.']);
+                    ->withErrors(['captcha' => 'Captcha verification failed. Please try again.']);
             }
         }
 
-        $user = User::create([
-            'username' => null,
-            'name' => Str::before((string) $validated['email'], '@'),
-            'email' => $validated['email'],
-            'password' => Hash::make(Str::random(64)),
-            'is_active' => false,
-            'onboarding_step' => 'email',
-            'username_changed_at' => now(),
-        ]);
+        if ($this->disposableEmailService->isDisposableEmail($email)) {
+            $this->logEmailEvent($email, $ip, null, 'blocked', 'disposable');
 
-        $token = Str::random(64);
-        DB::table('user_verification_tokens')->insert([
-            'user_id' => $user->id,
-            'token' => $token,
-            'expires_at' => now()->addDay(),
-            'created_at' => now(),
-            'updated_at' => now(),
-        ]);
+            return back()
+                ->withInput($request->except('website'))
+                ->withErrors(['email' => 'Please use a real email provider.']);
+        }
 
-        Mail::to($user->email)->queue(new RegistrationVerificationMail($token));
+        $user = User::query()->where('email', $email)->first();
 
-        $cooldown = $this->resendCooldownSeconds();
-        $this->setResendCooldown((string) $validated['email'], $cooldown);
+        if ($user && $user->email_verified_at !== null) {
+            $this->logEmailEvent($email, $ip, (int) $user->id, 'blocked', 'already-verified');
 
-        return redirect(route('register.notice', absolute: false))
-            ->with('status', 'Verification email sent. Please check your inbox.')
-            ->with('registration_email', (string) $validated['email']);
+            return $this->redirectToRegisterNotice($email);
+        }
+
+        if (! $user) {
+            $user = User::query()->create([
+                'username' => null,
+                'name' => Str::before($email, '@'),
+                'email' => $email,
+                'password' => Hash::make(Str::random(64)),
+                'is_active' => false,
+                'onboarding_step' => 'email',
+                'username_changed_at' => now(),
+            ]);
+        }
+
+        if ($this->isWithinEmailCooldown($user)) {
+            $this->logEmailEvent($email, $ip, (int) $user->id, 'blocked', 'cooldown');
+
+            return $this->redirectToRegisterNotice($email);
+        }
+
+        $token = $this->verificationTokenService->createForUser((int) $user->id);
+        $event = $this->logEmailEvent($email, $ip, (int) $user->id, 'queued', null);
+
+        SendVerificationEmailJob::dispatch(
+            emailEventId: (int) $event->id,
+            email: $email,
+            token: $token,
+            userId: (int) $user->id,
+            ip: $ip
+        );
+
+        $this->markVerificationEmailSent($user);
+
+        return $this->redirectToRegisterNotice($email);
     }
 
     public function resendVerification(Request $request): RedirectResponse
@@ -109,13 +136,8 @@ class RegisteredUserController extends Controller
             'email' => ['required', 'string', 'lowercase', 'email', 'max:255'],
         ]);
 
-        $email = (string) $validated['email'];
-        $remaining = $this->resendRemainingSeconds($email);
-        if ($remaining > 0) {
-            return back()
-                ->with('registration_email', $email)
-                ->withErrors(['email' => "Please wait {$remaining} seconds before resending."]);
-        }
+        $email = strtolower(trim((string) $validated['email']));
+        $ip = $request->ip();
 
         $user = User::query()
             ->where('email', $email)
@@ -124,55 +146,162 @@ class RegisteredUserController extends Controller
             ->first();
 
         if (! $user) {
-            return back()
-                ->with('registration_email', $email)
-                ->withErrors(['email' => 'No pending verification found for this email.']);
+            $this->logEmailEvent($email, $ip, null, 'blocked', 'missing');
+
+            return $this->redirectToRegisterNotice($email);
         }
 
-        DB::table('user_verification_tokens')->where('user_id', $user->id)->delete();
+        if ($this->isWithinEmailCooldown($user)) {
+            $this->logEmailEvent($email, $ip, (int) $user->id, 'blocked', 'cooldown');
 
-        $token = Str::random(64);
-        DB::table('user_verification_tokens')->insert([
-            'user_id' => $user->id,
-            'token' => $token,
-            'expires_at' => now()->addDay(),
-            'created_at' => now(),
-            'updated_at' => now(),
-        ]);
+            return $this->redirectToRegisterNotice($email);
+        }
 
-        Mail::to($user->email)->queue(new RegistrationVerificationMail($token));
+        $token = $this->verificationTokenService->createForUser((int) $user->id);
+        $event = $this->logEmailEvent($email, $ip, (int) $user->id, 'queued', null);
 
-        $cooldown = $this->resendCooldownSeconds();
-        $this->setResendCooldown($email, $cooldown);
+        SendVerificationEmailJob::dispatch(
+            emailEventId: (int) $event->id,
+            email: $email,
+            token: $token,
+            userId: (int) $user->id,
+            ip: $ip
+        );
 
+        $this->markVerificationEmailSent($user);
+
+        return $this->redirectToRegisterNotice($email);
+    }
+
+    private function redirectToRegisterNotice(string $email): RedirectResponse
+    {
         return redirect(route('register.notice', absolute: false))
-            ->with('registration_email', $email)
-            ->with('status', 'Verification email resent. Please check your inbox.');
+            ->with('status', $this->genericSuccessMessage())
+            ->with('registration_email', $email);
+    }
+
+    private function genericSuccessMessage(): string
+    {
+        return (string) config('registration.generic_success_message', 'If that email is valid, we sent a verification link.');
+    }
+
+    private function logEmailEvent(string $email, ?string $ip, ?int $userId, string $status, ?string $reason): EmailSendEvent
+    {
+        return EmailSendEvent::query()->create([
+            'type' => 'verify_email',
+            'email' => $email,
+            'ip' => $ip,
+            'user_id' => $userId,
+            'status' => $status,
+            'reason' => $reason,
+            'created_at' => now(),
+        ]);
+    }
+
+    private function shouldRequireTurnstile(?string $ip): bool
+    {
+        if (! $this->turnstileVerifier->isEnabled()) {
+            return false;
+        }
+
+        if ($ip === null || $ip === '') {
+            return false;
+        }
+
+        $threshold = max(1, (int) config('registration.turnstile_suspicious_attempts', 2));
+        $attempts = (int) cache()->get($this->registerAttemptCacheKey($ip), 0);
+
+        if ($attempts >= $threshold) {
+            return true;
+        }
+
+        $minuteLimit = max(1, (int) config('registration.ip_per_minute_limit', 3));
+        $dailyLimit = max(1, (int) config('registration.ip_per_day_limit', 20));
+
+        if (RateLimiter::tooManyAttempts($this->registerIpRateKey($ip), $minuteLimit)) {
+            return true;
+        }
+
+        return RateLimiter::tooManyAttempts($this->registerIpDailyRateKey($ip), $dailyLimit);
+    }
+
+    private function trackRegisterAttempt(?string $ip): void
+    {
+        if ($ip === null || $ip === '') {
+            return;
+        }
+
+        $key = $this->registerAttemptCacheKey($ip);
+        $windowMinutes = max(1, (int) config('registration.turnstile_attempt_window_minutes', 30));
+        $seconds = $windowMinutes * 60;
+
+        $attempts = (int) cache()->get($key, 0);
+        cache()->put($key, $attempts + 1, $seconds);
+    }
+
+    private function registerAttemptCacheKey(string $ip): string
+    {
+        return 'register:attempts:' . sha1($ip);
+    }
+
+    private function registerIpRateKey(string $ip): string
+    {
+        return 'register:ip:' . $ip;
+    }
+
+    private function registerIpDailyRateKey(string $ip): string
+    {
+        return 'register:ip:daily:' . $ip;
+    }
+
+    private function isWithinEmailCooldown(User $user): bool
+    {
+        if ($user->last_verification_sent_at === null) {
+            return false;
+        }
+
+        $cooldownMinutes = max(1, (int) config('registration.email_cooldown_minutes', 30));
+
+        return $user->last_verification_sent_at->gt(now()->subMinutes($cooldownMinutes));
+    }
+
+    private function markVerificationEmailSent(User $user): void
+    {
+        $now = now();
+
+        $windowStartedAt = $user->verification_send_window_started_at;
+        if (! $windowStartedAt || $windowStartedAt->lt($now->copy()->subDay())) {
+            $user->verification_send_window_started_at = $now;
+            $user->verification_send_count_24h = 1;
+        } else {
+            $user->verification_send_count_24h = ((int) $user->verification_send_count_24h) + 1;
+        }
+
+        $user->last_verification_sent_at = $now;
+        $user->save();
     }
 
     private function resendCooldownSeconds(): int
     {
-        return max(5, (int) config('antispam.register.resend_cooldown_seconds', 60));
-    }
-
-    private function resendCooldownCacheKey(string $email): string
-    {
-        return 'register:resend:cooldown:' . sha1(strtolower(trim($email)));
-    }
-
-    private function setResendCooldown(string $email, int $seconds): void
-    {
-        $until = CarbonImmutable::now()->addSeconds($seconds)->timestamp;
-        Cache::put($this->resendCooldownCacheKey($email), $until, $seconds + 5);
+        return max(60, ((int) config('registration.email_cooldown_minutes', 30)) * 60);
     }
 
     private function resendRemainingSeconds(string $email): int
     {
-        $until = (int) Cache::get($this->resendCooldownCacheKey($email), 0);
-        if ($until <= 0) {
+        $user = User::query()
+            ->where('email', strtolower(trim($email)))
+            ->whereNull('email_verified_at')
+            ->first();
+
+        if (! $user || $user->last_verification_sent_at === null) {
             return 0;
         }
 
-        return max(0, $until - time());
+        $remaining = $user->last_verification_sent_at
+            ->copy()
+            ->addSeconds($this->resendCooldownSeconds())
+            ->diffInSeconds(now(), false);
+
+        return $remaining >= 0 ? 0 : abs((int) $remaining);
     }
 }
diff --git a/app/Http/Controllers/Auth/RegistrationVerificationController.php b/app/Http/Controllers/Auth/RegistrationVerificationController.php
index b44f2769..21a570a2 100644
--- a/app/Http/Controllers/Auth/RegistrationVerificationController.php
+++ b/app/Http/Controllers/Auth/RegistrationVerificationController.php
@@ -4,30 +4,28 @@ namespace App\Http\Controllers\Auth;
 
 use App\Http\Controllers\Controller;
 use App\Models\User;
+use App\Services\Auth\RegistrationVerificationTokenService;
 use Illuminate\Http\RedirectResponse;
 use Illuminate\Support\Facades\Auth;
 use Illuminate\Support\Facades\DB;
 
 class RegistrationVerificationController extends Controller
 {
+    public function __construct(
+        private readonly RegistrationVerificationTokenService $tokenService
+    )
+    {
+    }
+
     public function __invoke(string $token): RedirectResponse
     {
-        $record = DB::table('user_verification_tokens')
-            ->where('token', $token)
-            ->first();
+        $record = $this->tokenService->findValidRecord($token);
 
         if (! $record) {
             return redirect(route('login', absolute: false))
                 ->withErrors(['email' => 'Verification link is invalid.']);
         }
 
-        if (now()->greaterThan($record->expires_at)) {
-            DB::table('user_verification_tokens')->where('id', $record->id)->delete();
-
-            return redirect(route('login', absolute: false))
-                ->withErrors(['email' => 'Verification link has expired.']);
-        }
-
         $user = User::query()->find((int) $record->user_id);
         if (! $user) {
             DB::table('user_verification_tokens')->where('id', $record->id)->delete();
diff --git a/app/Jobs/SendVerificationEmailJob.php b/app/Jobs/SendVerificationEmailJob.php
new file mode 100644
index 00000000..d3887268
--- /dev/null
+++ b/app/Jobs/SendVerificationEmailJob.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace App\Jobs;
+
+use App\Mail\RegistrationVerificationMail;
+use App\Services\Auth\RegistrationEmailQuotaService;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Foundation\Queue\Queueable;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Mail;
+use Illuminate\Support\Facades\RateLimiter;
+
+class SendVerificationEmailJob implements ShouldQueue
+{
+    use Queueable;
+
+    public int $tries = 5;
+
+    public function __construct(
+        public readonly int $emailEventId,
+        public readonly string $email,
+        public readonly string $token,
+        public readonly ?int $userId,
+        public readonly ?string $ip
+    ) {
+        $this->onQueue('mail');
+    }
+
+    public function handle(RegistrationEmailQuotaService $quotaService): void
+    {
+        $key = 'registration:verification-email:global';
+        $maxPerMinute = max(1, (int) config('registration.email_global_send_per_minute', 30));
+
+        $allowed = RateLimiter::attempt($key, $maxPerMinute, static fn () => true, 60);
+        if (! $allowed) {
+            $this->release(10);
+
+            return;
+        }
+
+        if ($quotaService->isExceeded()) {
+            $this->updateEvent('blocked', 'quota');
+
+            return;
+        }
+
+        Mail::to($this->email)->queue(new RegistrationVerificationMail($this->token));
+        $quotaService->incrementSentCount();
+
+        $this->updateEvent('sent', null);
+    }
+
+    private function updateEvent(string $status, ?string $reason): void
+    {
+        DB::table('email_send_events')
+            ->where('id', $this->emailEventId)
+            ->update([
+                'status' => $status,
+                'reason' => $reason,
+            ]);
+    }
+}
diff --git a/app/Mail/RegistrationVerificationMail.php b/app/Mail/RegistrationVerificationMail.php
index e90eea0a..75436a8f 100644
--- a/app/Mail/RegistrationVerificationMail.php
+++ b/app/Mail/RegistrationVerificationMail.php
@@ -40,7 +40,7 @@ class RegistrationVerificationMail extends Mailable implements ShouldQueue
             view: 'emails.registration-verification',
             with: [
                 'verificationUrl' => url('/verify/'.$this->token),
-                'expiresInHours' => 24,
+                'expiresInHours' => max(1, (int) config('registration.verify_token_ttl_hours', 24)),
                 'supportUrl' => $appUrl . '/support',
             ],
         );
diff --git a/app/Models/EmailSendEvent.php b/app/Models/EmailSendEvent.php
new file mode 100644
index 00000000..c375a9cf
--- /dev/null
+++ b/app/Models/EmailSendEvent.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class EmailSendEvent extends Model
+{
+    protected $table = 'email_send_events';
+
+    public $timestamps = false;
+
+    protected $fillable = [
+        'type',
+        'email',
+        'ip',
+        'user_id',
+        'status',
+        'reason',
+        'created_at',
+    ];
+
+    protected $casts = [
+        'created_at' => 'datetime',
+    ];
+
+    public function user()
+    {
+        return $this->belongsTo(User::class);
+    }
+}
diff --git a/app/Models/SystemEmailQuota.php b/app/Models/SystemEmailQuota.php
new file mode 100644
index 00000000..67c887b0
--- /dev/null
+++ b/app/Models/SystemEmailQuota.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class SystemEmailQuota extends Model
+{
+    protected $table = 'system_email_quota';
+
+    public $timestamps = false;
+
+    protected $fillable = [
+        'period',
+        'sent_count',
+        'limit_count',
+        'updated_at',
+    ];
+
+    protected $casts = [
+        'updated_at' => 'datetime',
+        'sent_count' => 'integer',
+        'limit_count' => 'integer',
+    ];
+}
+ 
diff --git a/app/Models/User.php b/app/Models/User.php
index c1556f0f..a7c844f6 100644
--- a/app/Models/User.php
+++ b/app/Models/User.php
@@ -26,6 +26,9 @@ class User extends Authenticatable
         'onboarding_step',
         'name',
         'email',
+        'last_verification_sent_at',
+        'verification_send_count_24h',
+        'verification_send_window_started_at',
         'is_active',
         'needs_password_reset',
         'password',
@@ -51,6 +54,9 @@ class User extends Authenticatable
     {
         return [
             'email_verified_at' => 'datetime',
+            'last_verification_sent_at' => 'datetime',
+            'verification_send_window_started_at' => 'datetime',
+            'verification_send_count_24h' => 'integer',
             'username_changed_at' => 'datetime',
             'deleted_at' => 'datetime',
             'password' => 'hashed',
diff --git a/app/Providers/AppServiceProvider.php b/app/Providers/AppServiceProvider.php
index 1d74f260..09b1c71b 100644
--- a/app/Providers/AppServiceProvider.php
+++ b/app/Providers/AppServiceProvider.php
@@ -91,10 +91,22 @@ class AppServiceProvider extends ServiceProvider
 
     private function configureAuthRateLimiters(): void
     {
+        RateLimiter::for('register-ip', function (Request $request): Limit {
+            $limit = max(1, (int) config('registration.ip_per_minute_limit', 3));
+
+            return Limit::perMinute($limit)->by('register:ip:' . $request->ip());
+        });
+
+        RateLimiter::for('register-ip-daily', function (Request $request): Limit {
+            $limit = max(1, (int) config('registration.ip_per_day_limit', 20));
+
+            return Limit::perDay($limit)->by('register:ip:daily:' . $request->ip());
+        });
+
         RateLimiter::for('register', function (Request $request): array {
             $emailKey = strtolower((string) $request->input('email', 'unknown'));
-            $ipLimit = (int) config('antispam.register.ip_per_minute', 20);
-            $emailLimit = (int) config('antispam.register.email_per_minute', 6);
+            $ipLimit = (int) config('registration.ip_per_minute_limit', 3);
+            $emailLimit = (int) config('registration.email_per_minute_limit', 6);
 
             return [
                 Limit::perMinute($ipLimit)->by('register:ip:' . $request->ip()),
diff --git a/app/Services/Auth/DisposableEmailService.php b/app/Services/Auth/DisposableEmailService.php
new file mode 100644
index 00000000..97b11525
--- /dev/null
+++ b/app/Services/Auth/DisposableEmailService.php
@@ -0,0 +1,66 @@
+<?php
+
+namespace App\Services\Auth;
+
+class DisposableEmailService
+{
+    public function isEnabled(): bool
+    {
+        return (bool) config('registration.disposable_domains_enabled', true);
+    }
+
+    public function isDisposableEmail(string $email): bool
+    {
+        if (! $this->isEnabled()) {
+            return false;
+        }
+
+        $domain = $this->extractDomain($email);
+        if ($domain === null) {
+            return false;
+        }
+
+        $blocked = (array) config('disposable_email_domains.domains', []);
+        foreach ($blocked as $entry) {
+            $pattern = strtolower(trim((string) $entry));
+            if ($pattern === '') {
+                continue;
+            }
+
+            if ($this->matchesPattern($domain, $pattern)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    private function extractDomain(string $email): ?string
+    {
+        $normalized = strtolower(trim($email));
+        if ($normalized === '' || ! str_contains($normalized, '@')) {
+            return null;
+        }
+
+        $parts = explode('@', $normalized);
+        $domain = trim((string) end($parts));
+
+        return $domain !== '' ? $domain : null;
+    }
+
+    private function matchesPattern(string $domain, string $pattern): bool
+    {
+        if ($pattern === $domain) {
+            return true;
+        }
+
+        if (! str_contains($pattern, '*')) {
+            return false;
+        }
+
+        $quoted = preg_quote($pattern, '#');
+        $regex = '#^' . str_replace('\\*', '.*', $quoted) . '$#i';
+
+        return (bool) preg_match($regex, $domain);
+    }
+}
diff --git a/app/Services/Auth/RegistrationEmailQuotaService.php b/app/Services/Auth/RegistrationEmailQuotaService.php
new file mode 100644
index 00000000..f1c0ab67
--- /dev/null
+++ b/app/Services/Auth/RegistrationEmailQuotaService.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace App\Services\Auth;
+
+use App\Models\SystemEmailQuota;
+
+class RegistrationEmailQuotaService
+{
+    public function isExceeded(): bool
+    {
+        $quota = $this->getCurrentPeriodQuota();
+
+        return $quota->sent_count >= $quota->limit_count;
+    }
+
+    public function incrementSentCount(): void
+    {
+        $quota = $this->getCurrentPeriodQuota();
+        $quota->sent_count = (int) $quota->sent_count + 1;
+        $quota->updated_at = now();
+        $quota->save();
+    }
+
+    private function getCurrentPeriodQuota(): SystemEmailQuota
+    {
+        $period = now()->format('Y-m');
+
+        return SystemEmailQuota::query()->firstOrCreate(
+            ['period' => $period],
+            [
+                'sent_count' => 0,
+                'limit_count' => max(1, (int) config('registration.monthly_email_limit', 10000)),
+                'updated_at' => now(),
+            ]
+        );
+    }
+}
diff --git a/app/Services/Auth/RegistrationVerificationTokenService.php b/app/Services/Auth/RegistrationVerificationTokenService.php
new file mode 100644
index 00000000..34e2dcb0
--- /dev/null
+++ b/app/Services/Auth/RegistrationVerificationTokenService.php
@@ -0,0 +1,67 @@
+<?php
+
+namespace App\Services\Auth;
+
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Str;
+
+class RegistrationVerificationTokenService
+{
+    public function createForUser(int $userId): string
+    {
+        DB::table('user_verification_tokens')->where('user_id', $userId)->delete();
+
+        $rawToken = Str::random(64);
+        $tokenHash = $this->hashToken($rawToken);
+
+        // Support environments where the migration hasn't renamed the column yet
+        $column = \Illuminate\Support\Facades\Schema::hasColumn('user_verification_tokens', 'token_hash') ? 'token_hash' : 'token';
+
+        DB::table('user_verification_tokens')->insert([
+            'user_id' => $userId,
+            $column => $tokenHash,
+            'expires_at' => now()->addHours($this->ttlHours()),
+            'created_at' => now(),
+            'updated_at' => now(),
+        ]);
+
+        return $rawToken;
+    }
+
+    public function findValidRecord(string $rawToken): ?object
+    {
+        $tokenHash = $this->hashToken($rawToken);
+
+        $column = \Illuminate\Support\Facades\Schema::hasColumn('user_verification_tokens', 'token_hash') ? 'token_hash' : 'token';
+
+        $record = DB::table('user_verification_tokens')
+            ->where($column, $tokenHash)
+            ->first();
+
+        if (! $record) {
+            return null;
+        }
+
+        if (! hash_equals((string) ($record->{$column} ?? ''), $tokenHash)) {
+            return null;
+        }
+
+        if (now()->greaterThan($record->expires_at)) {
+            DB::table('user_verification_tokens')->where('id', $record->id)->delete();
+
+            return null;
+        }
+
+        return $record;
+    }
+
+    private function ttlHours(): int
+    {
+        return max(1, (int) config('registration.verify_token_ttl_hours', 24));
+    }
+
+    private function hashToken(string $rawToken): string
+    {
+        return hash('sha256', $rawToken);
+    }
+}
diff --git a/app/Services/Security/TurnstileVerifier.php b/app/Services/Security/TurnstileVerifier.php
new file mode 100644
index 00000000..05965852
--- /dev/null
+++ b/app/Services/Security/TurnstileVerifier.php
@@ -0,0 +1,51 @@
+<?php
+
+namespace App\Services\Security;
+
+use Illuminate\Support\Facades\Http;
+use Illuminate\Support\Facades\Log;
+
+class TurnstileVerifier
+{
+    public function isEnabled(): bool
+    {
+        return (bool) config('registration.enable_turnstile', true)
+            && (string) config('services.turnstile.site_key', '') !== ''
+            && (string) config('services.turnstile.secret_key', '') !== '';
+    }
+
+    public function verify(string $token, ?string $ip = null): bool
+    {
+        if (! $this->isEnabled()) {
+            return true;
+        }
+
+        if (trim($token) === '') {
+            return false;
+        }
+
+        try {
+            $response = Http::asForm()
+                ->timeout((int) config('services.turnstile.timeout', 5))
+                ->post((string) config('services.turnstile.verify_url', 'https://challenges.cloudflare.com/turnstile/v0/siteverify'), [
+                    'secret' => (string) config('services.turnstile.secret_key', ''),
+                    'response' => $token,
+                    'remoteip' => $ip,
+                ]);
+
+            if ($response->failed()) {
+                return false;
+            }
+
+            $payload = $response->json();
+
+            return (bool) data_get($payload, 'success', false);
+        } catch (\Throwable $exception) {
+            Log::warning('turnstile verification request failed', [
+                'message' => $exception->getMessage(),
+            ]);
+
+            return false;
+        }
+    }
+}
diff --git a/config/disposable_email_domains.php b/config/disposable_email_domains.php
new file mode 100644
index 00000000..240d4ea4
--- /dev/null
+++ b/config/disposable_email_domains.php
@@ -0,0 +1,11 @@
+<?php
+
+return [
+    'domains' => [
+        'mailinator.com',
+        '10minutemail.com',
+        'guerrillamail.com',
+        'tempmail.com',
+        'yopmail.com',
+    ],
+];
diff --git a/config/registration.php b/config/registration.php
new file mode 100644
index 00000000..e25e71cd
--- /dev/null
+++ b/config/registration.php
@@ -0,0 +1,16 @@
+<?php
+
+return [
+    'ip_per_minute_limit' => (int) env('REGISTRATION_IP_PER_MINUTE_LIMIT', 3),
+    'ip_per_day_limit' => (int) env('REGISTRATION_IP_PER_DAY_LIMIT', 20),
+    'email_per_minute_limit' => (int) env('REGISTRATION_EMAIL_PER_MINUTE_LIMIT', 6),
+    'email_cooldown_minutes' => (int) env('REGISTRATION_EMAIL_COOLDOWN_MINUTES', 30),
+    'verify_token_ttl_hours' => (int) env('REGISTRATION_VERIFY_TOKEN_TTL_HOURS', 24),
+    'enable_turnstile' => (bool) env('REGISTRATION_ENABLE_TURNSTILE', true),
+    'disposable_domains_enabled' => (bool) env('REGISTRATION_DISPOSABLE_DOMAINS_ENABLED', true),
+    'turnstile_suspicious_attempts' => (int) env('REGISTRATION_TURNSTILE_SUSPICIOUS_ATTEMPTS', 2),
+    'turnstile_attempt_window_minutes' => (int) env('REGISTRATION_TURNSTILE_ATTEMPT_WINDOW_MINUTES', 30),
+    'email_global_send_per_minute' => (int) env('REGISTRATION_EMAIL_GLOBAL_SEND_PER_MINUTE', 30),
+    'monthly_email_limit' => (int) env('REGISTRATION_MONTHLY_EMAIL_LIMIT', 10000),
+    'generic_success_message' => 'If that email is valid, we sent a verification link.',
+];
diff --git a/config/services.php b/config/services.php
index 2a68e621..09d3b8e6 100644
--- a/config/services.php
+++ b/config/services.php
@@ -47,4 +47,11 @@ return [
         'timeout' => (int) env('RECAPTCHA_TIMEOUT', 5),
     ],
 
+    'turnstile' => [
+        'site_key' => env('TURNSTILE_SITE_KEY'),
+        'secret_key' => env('TURNSTILE_SECRET_KEY'),
+        'verify_url' => env('TURNSTILE_VERIFY_URL', 'https://challenges.cloudflare.com/turnstile/v0/siteverify'),
+        'timeout' => (int) env('TURNSTILE_TIMEOUT', 5),
+    ],
+
 ];
diff --git a/database/migrations/2026_02_21_000001_add_registration_antispam_fields_to_users_table.php b/database/migrations/2026_02_21_000001_add_registration_antispam_fields_to_users_table.php
new file mode 100644
index 00000000..3d9bde77
--- /dev/null
+++ b/database/migrations/2026_02_21_000001_add_registration_antispam_fields_to_users_table.php
@@ -0,0 +1,41 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    public function up(): void
+    {
+        Schema::table('users', function (Blueprint $table): void {
+            if (! Schema::hasColumn('users', 'last_verification_sent_at')) {
+                $table->timestamp('last_verification_sent_at')->nullable()->after('email_verified_at');
+            }
+
+            if (! Schema::hasColumn('users', 'verification_send_count_24h')) {
+                $table->unsignedInteger('verification_send_count_24h')->default(0)->after('last_verification_sent_at');
+            }
+
+            if (! Schema::hasColumn('users', 'verification_send_window_started_at')) {
+                $table->timestamp('verification_send_window_started_at')->nullable()->after('verification_send_count_24h');
+            }
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('users', function (Blueprint $table): void {
+            if (Schema::hasColumn('users', 'verification_send_window_started_at')) {
+                $table->dropColumn('verification_send_window_started_at');
+            }
+
+            if (Schema::hasColumn('users', 'verification_send_count_24h')) {
+                $table->dropColumn('verification_send_count_24h');
+            }
+
+            if (Schema::hasColumn('users', 'last_verification_sent_at')) {
+                $table->dropColumn('last_verification_sent_at');
+            }
+        });
+    }
+};
diff --git a/database/migrations/2026_02_21_000002_create_email_send_events_table.php b/database/migrations/2026_02_21_000002_create_email_send_events_table.php
new file mode 100644
index 00000000..5166ba80
--- /dev/null
+++ b/database/migrations/2026_02_21_000002_create_email_send_events_table.php
@@ -0,0 +1,35 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    public function up(): void
+    {
+        if (Schema::hasTable('email_send_events')) {
+            return;
+        }
+
+        Schema::create('email_send_events', function (Blueprint $table): void {
+            $table->id();
+            $table->string('type', 64);
+            $table->string('email');
+            $table->string('ip', 45)->nullable();
+            $table->foreignId('user_id')->nullable()->constrained('users')->nullOnDelete();
+            $table->string('status', 32);
+            $table->string('reason', 64)->nullable();
+            $table->timestamp('created_at')->useCurrent();
+
+            $table->index('email');
+            $table->index('ip');
+            $table->index(['type', 'status']);
+            $table->index('created_at');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('email_send_events');
+    }
+};
diff --git a/database/migrations/2026_02_21_000003_create_system_email_quota_table.php b/database/migrations/2026_02_21_000003_create_system_email_quota_table.php
new file mode 100644
index 00000000..db3e00c8
--- /dev/null
+++ b/database/migrations/2026_02_21_000003_create_system_email_quota_table.php
@@ -0,0 +1,27 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    public function up(): void
+    {
+        if (Schema::hasTable('system_email_quota')) {
+            return;
+        }
+
+        Schema::create('system_email_quota', function (Blueprint $table): void {
+            $table->id();
+            $table->string('period', 7)->unique();
+            $table->unsignedInteger('sent_count')->default(0);
+            $table->unsignedInteger('limit_count');
+            $table->timestamp('updated_at')->useCurrent()->useCurrentOnUpdate();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('system_email_quota');
+    }
+};
diff --git a/database/migrations/2026_02_21_000004_rename_token_to_token_hash_in_user_verification_tokens.php b/database/migrations/2026_02_21_000004_rename_token_to_token_hash_in_user_verification_tokens.php
new file mode 100644
index 00000000..ee2d355e
--- /dev/null
+++ b/database/migrations/2026_02_21_000004_rename_token_to_token_hash_in_user_verification_tokens.php
@@ -0,0 +1,48 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    public function up(): void
+    {
+        if (! Schema::hasTable('user_verification_tokens')) {
+            return;
+        }
+
+        // Skip rename on SQLite (in-memory tests) — SQLite doesn't support CHANGE syntax.
+        try {
+            $driver = DB::connection()->getPdo()->getAttribute(PDO::ATTR_DRIVER_NAME);
+        } catch (\Throwable $e) {
+            $driver = null;
+        }
+
+        if ($driver === 'sqlite') {
+            return;
+        }
+
+        // Use raw statement to avoid requiring doctrine/dbal for simple rename
+        // Adjust column definition to match original migration (VARCHAR(128) NOT NULL)
+        DB::statement("ALTER TABLE `user_verification_tokens` CHANGE `token` `token_hash` VARCHAR(128) NOT NULL");
+    }
+
+    public function down(): void
+    {
+        if (! Schema::hasTable('user_verification_tokens')) {
+            return;
+        }
+
+        try {
+            $driver = DB::connection()->getPdo()->getAttribute(PDO::ATTR_DRIVER_NAME);
+        } catch (\Throwable $e) {
+            $driver = null;
+        }
+
+        if ($driver === 'sqlite') {
+            return;
+        }
+
+        DB::statement("ALTER TABLE `user_verification_tokens` CHANGE `token_hash` `token` VARCHAR(128) NOT NULL");
+    }
+};
diff --git a/database/migrations/2026_02_21_000005_ensure_user_verification_tokens_table_exists.php b/database/migrations/2026_02_21_000005_ensure_user_verification_tokens_table_exists.php
new file mode 100644
index 00000000..9331629a
--- /dev/null
+++ b/database/migrations/2026_02_21_000005_ensure_user_verification_tokens_table_exists.php
@@ -0,0 +1,30 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    public function up(): void
+    {
+        if (Schema::hasTable('user_verification_tokens')) {
+            return;
+        }
+
+        Schema::create('user_verification_tokens', function (Blueprint $table): void {
+            $table->id();
+            $table->foreignId('user_id')->constrained('users')->cascadeOnDelete();
+            $table->string('token_hash', 128)->unique();
+            $table->timestamp('expires_at');
+            $table->timestamps();
+
+            $table->index(['user_id', 'expires_at']);
+        });
+    }
+
+    public function down(): void
+    {
+        // Intentionally no-op to avoid dropping an existing tokens table
+        // that may have been created by earlier migrations.
+    }
+};
diff --git a/docs/registration-antispam.md b/docs/registration-antispam.md
new file mode 100644
index 00000000..99cd31ea
--- /dev/null
+++ b/docs/registration-antispam.md
@@ -0,0 +1,202 @@
+# Registration Anti-Spam + Email Quota Protection
+
+This document describes how the Skinbase email-first registration hardening works.
+
+## Scope
+
+Applies to the flow:
+
+- `GET /register`
+- `POST /register`
+- `GET /register/notice`
+- `POST /register/resend-verification`
+- `GET /verify/{token}`
+- `GET/POST /setup/password`
+- `GET/POST /setup/username`
+
+Primary implementation:
+
+- `app/Http/Controllers/Auth/RegisteredUserController.php`
+- `app/Http/Controllers/Auth/RegistrationVerificationController.php`
+
+## Security Controls
+
+### 1) IP Rate Limiting
+
+Defined in `app/Providers/AppServiceProvider.php`:
+
+- `register-ip`: per-minute IP limit
+- `register-ip-daily`: per-day IP limit
+- `register` (legacy resend route): per-minute IP + per-email key
+
+Applied on `POST /register` in `routes/auth.php`:
+
+- `throttle:register-ip`
+- `throttle:register-ip-daily`
+
+### 2) Per-Email Cooldown
+
+Cooldown is enforced by user fields:
+
+- `users.last_verification_sent_at`
+- `users.verification_send_count_24h`
+- `users.verification_send_window_started_at`
+
+On repeated requests within cooldown:
+
+- No additional verification email is queued
+- Generic success message is returned
+
+### 3) Progressive CAPTCHA (Turnstile)
+
+Service:
+
+- `app/Services/Security/TurnstileVerifier.php`
+
+Controller logic (`RegisteredUserController::shouldRequireTurnstile`):
+
+- Requires Turnstile for suspicious IP activity (attempt threshold)
+- Also requires Turnstile when registration rate-limit state is detected
+
+UI behavior (`resources/views/auth/register.blade.php`):
+
+- Turnstile widget is only rendered when required
+
+### 4) Disposable Domain Block
+
+Service:
+
+- `app/Services/Auth/DisposableEmailService.php`
+
+Config source:
+
+- `config/disposable_email_domains.php`
+
+Behavior:
+
+- Blocks known disposable domains (supports wildcard matching)
+- Returns friendly validation error
+
+### 5) Queue + Throttle + Quota Circuit Breaker
+
+Queue job:
+
+- `app/Jobs/SendVerificationEmailJob.php`
+
+Behavior:
+
+- Registration controller dispatches `SendVerificationEmailJob`
+- Job applies global send throttling via `RateLimiter`
+- Job checks monthly quota via `RegistrationEmailQuotaService`
+- If quota exceeded: send is blocked (fail closed), event marked blocked
+
+Quota service/model/table:
+
+- `app/Services/Auth/RegistrationEmailQuotaService.php`
+- `app/Models/SystemEmailQuota.php`
+- `system_email_quota`
+
+Send event audit:
+
+- `app/Models/EmailSendEvent.php`
+- `email_send_events`
+
+### 6) Generic Responses (Anti-Enumeration)
+
+The registration entry point uses a standard success message:
+
+- `If that email is valid, we sent a verification link.`
+
+This message is returned for:
+
+- Unknown emails
+- Existing verified emails
+- Cooldown cases
+- Quota-blocked paths
+
+### 7) Verification Token Hardening
+
+Service:
+
+- `app/Services/Auth/RegistrationVerificationTokenService.php`
+
+Protections:
+
+- Token generated with high entropy (`Str::random(64)`)
+- Stored hashed (`sha256`) in `user_verification_tokens`
+- Expires using configured TTL
+- Validation uses hash lookup + constant-time compare (`hash_equals`)
+- Token deleted after successful verification (one-time use)
+
+Verification endpoint:
+
+- `app/Http/Controllers/Auth/RegistrationVerificationController.php`
+
+## Configuration
+
+Main registration config:
+
+- `config/registration.php`
+
+Key settings:
+
+- `ip_per_minute_limit`
+- `ip_per_day_limit`
+- `email_per_minute_limit`
+- `email_cooldown_minutes`
+- `verify_token_ttl_hours`
+- `enable_turnstile`
+- `disposable_domains_enabled`
+- `turnstile_suspicious_attempts`
+- `turnstile_attempt_window_minutes`
+- `email_global_send_per_minute`
+- `monthly_email_limit`
+- `generic_success_message`
+
+Turnstile config:
+
+- `config/services.php` under `turnstile`
+
+Environment examples:
+
+- `.env.example` contains all registration anti-spam keys
+
+## Database Objects
+
+Added for anti-spam/quota support:
+
+- Migration: `2026_02_21_000001_add_registration_antispam_fields_to_users_table.php`
+- Migration: `2026_02_21_000002_create_email_send_events_table.php`
+- Migration: `2026_02_21_000003_create_system_email_quota_table.php`
+- Migration: `2026_02_20_191000_add_registration_phase1_schema.php` (creates `user_verification_tokens`)
+- Migration: `2026_02_21_000004_rename_token_to_token_hash_in_user_verification_tokens.php` (schema hardening)
+- Migration: `2026_02_21_000005_ensure_user_verification_tokens_table_exists.php` (rollout safety)
+
+## Test Coverage
+
+Primary tests:
+
+- `tests/Feature/Auth/RegistrationAntiSpamTest.php`
+- `tests/Feature/Auth/RegistrationNoticeResendTest.php`
+- `tests/Feature/Auth/RegistrationQuotaCircuitBreakerTest.php`
+- `tests/Feature/Auth/RegistrationTokenVerificationTest.php`
+- `tests/Feature/Auth/RegistrationFlowChecklistTest.php`
+- `tests/Feature/Auth/RegistrationVerificationMailTest.php`
+
+Covered scenarios:
+
+- IP rate-limit returns `429`
+- Cooldown suppresses extra sends
+- Disposable domains blocked
+- Quota exceeded blocks send and keeps generic success UX
+- Turnstile required on abuse/rate-limit state
+- Tokens hashed, expire, and are one-time
+- Responses avoid account enumeration
+
+## Operations Notes
+
+- Keep disposable domain list maintained in `config/disposable_email_domains.php`.
+- Ensure queue workers process the `mail` queue.
+- Monitor `email_send_events` for blocked/sent patterns.
+- Set `REGISTRATION_MONTHLY_EMAIL_LIMIT` based on provider quota.
+- Configure `TURNSTILE_SITE_KEY` and `TURNSTILE_SECRET_KEY` in production.
diff --git a/resources/views/auth/register.blade.php b/resources/views/auth/register.blade.php
index 20d63587..8a0dac6d 100644
--- a/resources/views/auth/register.blade.php
+++ b/resources/views/auth/register.blade.php
@@ -17,8 +17,8 @@
                     <x-input-error :messages="$errors->get('email')" class="mt-2" />
                 </div>
 
-                @if(config('services.recaptcha.enabled'))
-                    <input type="hidden" name="g-recaptcha-response" value="{{ old('g-recaptcha-response') }}" />
+                @if(($requiresTurnstile ?? false) && ($turnstileSiteKey ?? '') !== '')
+                    <div class="cf-turnstile" data-sitekey="{{ $turnstileSiteKey }}"></div>
                     <x-input-error :messages="$errors->get('captcha')" class="mt-2" />
                 @endif
 
@@ -29,4 +29,7 @@
         </div>
     </div>
 </div>
+@if(($requiresTurnstile ?? false) && ($turnstileSiteKey ?? '') !== '')
+    <script src="https://challenges.cloudflare.com/turnstile/v0/api.js" async defer></script>
+@endif
 @endsection
diff --git a/resources/views/dashboard.blade.php b/resources/views/dashboard.blade.php
index 496c2749..160a7861 100644
--- a/resources/views/dashboard.blade.php
+++ b/resources/views/dashboard.blade.php
@@ -1,4 +1,4 @@
-@extends('layouts.legacy')
+@extends('layouts.nova')
 
 @section('content')
 <div class="container">
diff --git a/routes/auth.php b/routes/auth.php
index b6315712..b74f3fb5 100644
--- a/routes/auth.php
+++ b/routes/auth.php
@@ -22,7 +22,7 @@ Route::middleware(['guest', 'normalize.username'])->group(function () {
         ->name('register.notice');
 
     Route::post('register', [RegisteredUserController::class, 'store'])
-        ->middleware('throttle:register');
+        ->middleware(['throttle:register-ip', 'throttle:register-ip-daily']);
 
     Route::post('register/resend-verification', [RegisteredUserController::class, 'resendVerification'])
         ->middleware('throttle:register')
diff --git a/tests/Feature/Auth/RegistrationAntiSpamTest.php b/tests/Feature/Auth/RegistrationAntiSpamTest.php
index 29cfa997..58415c1c 100644
--- a/tests/Feature/Auth/RegistrationAntiSpamTest.php
+++ b/tests/Feature/Auth/RegistrationAntiSpamTest.php
@@ -1,14 +1,16 @@
 <?php
 
-use App\Services\Security\RecaptchaVerifier;
+use App\Jobs\SendVerificationEmailJob;
+use App\Models\User;
+use App\Services\Security\TurnstileVerifier;
 use Illuminate\Foundation\Testing\RefreshDatabase;
-use Illuminate\Support\Facades\Mail;
+use Illuminate\Support\Facades\Queue;
 use Illuminate\Support\Facades\RateLimiter;
 
 uses(RefreshDatabase::class);
 
 it('rejects registration when honeypot field is filled', function () {
-    Mail::fake();
+    Queue::fake();
 
     $response = $this->from('/register')->post('/register', [
         'email' => 'bot1@example.com',
@@ -21,9 +23,9 @@ it('rejects registration when honeypot field is filled', function () {
 });
 
 it('throttles excessive registration attempts by ip', function () {
-    Mail::fake();
-    config()->set('antispam.register.ip_per_minute', 2);
-    config()->set('antispam.register.email_per_minute', 20);
+    Queue::fake();
+    config()->set('registration.ip_per_minute_limit', 2);
+    config()->set('registration.ip_per_day_limit', 100);
 
     for ($i = 0; $i < 2; $i++) {
         $this->post('/register', [
@@ -36,19 +38,37 @@ it('throttles excessive registration attempts by ip', function () {
     ])->assertStatus(429);
 
     RateLimiter::clear('register:ip:127.0.0.1');
+    RateLimiter::clear('register:ip:daily:127.0.0.1');
 });
 
-it('rejects registration when recaptcha is enabled and verification fails', function () {
-    Mail::fake();
+it('blocks disposable email domains during registration', function () {
+    Queue::fake();
+    config()->set('registration.disposable_domains_enabled', true);
+    config()->set('disposable_email_domains.domains', ['tempmail.com']);
 
-    $mock = \Mockery::mock(RecaptchaVerifier::class);
+    $response = $this->from('/register')->post('/register', [
+        'email' => 'bot@tempmail.com',
+    ]);
+
+    $response->assertRedirect('/register');
+    $response->assertSessionHasErrors('email');
+    $this->assertDatabaseMissing('users', ['email' => 'bot@tempmail.com']);
+});
+
+it('requires turnstile after suspicious registration attempts', function () {
+    Queue::fake();
+    config()->set('registration.enable_turnstile', true);
+    config()->set('registration.turnstile_suspicious_attempts', 1);
+    config()->set('services.turnstile.site_key', 'site-key');
+    config()->set('services.turnstile.secret_key', 'secret-key');
+
+    $mock = \Mockery::mock(TurnstileVerifier::class);
     $mock->shouldReceive('isEnabled')->andReturn(true);
     $mock->shouldReceive('verify')->once()->andReturn(false);
-    $this->app->instance(RecaptchaVerifier::class, $mock);
+    $this->app->instance(TurnstileVerifier::class, $mock);
 
     $response = $this->from('/register')->post('/register', [
         'email' => 'captcha-user@example.com',
-        'g-recaptcha-response' => 'bad-token',
     ]);
 
     $response->assertRedirect('/register');
@@ -56,17 +76,79 @@ it('rejects registration when recaptcha is enabled and verification fails', func
     $this->assertDatabaseMissing('users', ['email' => 'captcha-user@example.com']);
 });
 
-it('allows registration when recaptcha is enabled and verification succeeds', function () {
-    Mail::fake();
+it('shows turnstile when ip is in rate-limited state', function () {
+    config()->set('registration.enable_turnstile', true);
+    config()->set('registration.ip_per_minute_limit', 1);
+    config()->set('services.turnstile.site_key', 'site-key');
+    config()->set('services.turnstile.secret_key', 'secret-key');
 
-    $mock = \Mockery::mock(RecaptchaVerifier::class);
+    RateLimiter::hit('register:ip:127.0.0.1', 60);
+
+    $this->get('/register')
+        ->assertOk()
+        ->assertSee('cf-turnstile', false);
+
+    RateLimiter::clear('register:ip:127.0.0.1');
+});
+
+it('enforces verification email cooldown per address', function () {
+    Queue::fake();
+
+    $this->post('/register', [
+        'email' => 'cooldown2@example.com',
+    ])->assertRedirect('/register/notice');
+
+    $response = $this->post('/register', [
+        'email' => 'cooldown2@example.com',
+    ]);
+
+    $response->assertRedirect('/register/notice');
+    $response->assertSessionHas('status', 'If that email is valid, we sent a verification link.');
+    Queue::assertPushed(SendVerificationEmailJob::class, 1);
+});
+
+it('returns generic success for existing verified emails (anti-enumeration)', function () {
+    Queue::fake();
+
+    User::factory()->create([
+        'email' => 'existing@example.com',
+        'email_verified_at' => now(),
+        'onboarding_step' => 'complete',
+        'is_active' => true,
+    ]);
+
+    $response = $this->post('/register', [
+        'email' => 'existing@example.com',
+    ]);
+
+    $response->assertRedirect('/register/notice');
+    $response->assertSessionHas('status', 'If that email is valid, we sent a verification link.');
+    Queue::assertNothingPushed();
+});
+
+it('still allows registration when turnstile passes', function () {
+    Queue::fake();
+    config()->set('registration.enable_turnstile', true);
+    config()->set('registration.turnstile_suspicious_attempts', 1);
+    config()->set('services.turnstile.site_key', 'site-key');
+    config()->set('services.turnstile.secret_key', 'secret-key');
+
+    $mock = \Mockery::mock(TurnstileVerifier::class);
     $mock->shouldReceive('isEnabled')->andReturn(true);
+    $mock->shouldReceive('verify')->once()->andReturn(false);
     $mock->shouldReceive('verify')->once()->andReturn(true);
-    $this->app->instance(RecaptchaVerifier::class, $mock);
+    $this->app->instance(TurnstileVerifier::class, $mock);
+
+    $first = $this->from('/register')->post('/register', [
+        'email' => 'captcha-block@example.com',
+    ]);
+
+    $first->assertRedirect('/register');
+    $first->assertSessionHasErrors('captcha');
 
     $response = $this->post('/register', [
         'email' => 'captcha-pass@example.com',
-        'g-recaptcha-response' => 'good-token',
+        'cf-turnstile-response' => 'good-token',
     ]);
 
     $response->assertRedirect('/register/notice');
diff --git a/tests/Feature/Auth/RegistrationFlowChecklistTest.php b/tests/Feature/Auth/RegistrationFlowChecklistTest.php
index 13a97aa2..3d7d9126 100644
--- a/tests/Feature/Auth/RegistrationFlowChecklistTest.php
+++ b/tests/Feature/Auth/RegistrationFlowChecklistTest.php
@@ -2,13 +2,14 @@
 
 use App\Models\User;
 use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\Queue;
 use Illuminate\Support\Facades\DB;
-use Illuminate\Support\Facades\Mail;
+use App\Jobs\SendVerificationEmailJob;
 
 uses(RefreshDatabase::class);
 
 it('completes happy path registration onboarding flow', function () {
-    Mail::fake();
+    Queue::fake();
 
     $register = $this->post('/register', [
         'email' => 'flow-user@example.com',
@@ -19,9 +20,12 @@ it('completes happy path registration onboarding flow', function () {
     $user = User::query()->where('email', 'flow-user@example.com')->firstOrFail();
     expect($user->onboarding_step)->toBe('email');
 
-    $token = (string) DB::table('user_verification_tokens')
-        ->where('user_id', $user->id)
-        ->value('token');
+    $token = null;
+    Queue::assertPushed(SendVerificationEmailJob::class, function (SendVerificationEmailJob $job) use (&$token) {
+        $token = $job->token;
+
+        return true;
+    });
 
     $this->get('/verify/' . $token)->assertRedirect('/setup/password');
 
@@ -58,9 +62,10 @@ it('rejects expired verification token', function () {
         'is_active' => false,
     ]);
 
+    $column = \Illuminate\Support\Facades\Schema::hasColumn('user_verification_tokens', 'token_hash') ? 'token_hash' : 'token';
     DB::table('user_verification_tokens')->insert([
         'user_id' => $user->id,
-        'token' => 'expired-checklist-token',
+        $column => hash('sha256', 'expired-checklist-token'),
         'expires_at' => now()->subHour(),
         'created_at' => now(),
         'updated_at' => now(),
@@ -74,16 +79,22 @@ it('rejects expired verification token', function () {
 });
 
 it('rejects duplicate email at registration', function () {
+    Queue::fake();
+
     User::factory()->create([
         'email' => 'duplicate-check@example.com',
+        'email_verified_at' => now(),
+        'onboarding_step' => 'complete',
+        'is_active' => true,
     ]);
 
-    $response = $this->from('/register')->post('/register', [
+    $response = $this->post('/register', [
         'email' => 'duplicate-check@example.com',
     ]);
 
-    $response->assertRedirect('/register');
-    $response->assertSessionHasErrors('email');
+    $response->assertRedirect('/register/notice');
+    $response->assertSessionHas('status', 'If that email is valid, we sent a verification link.');
+    Queue::assertNothingPushed();
 });
 
 it('rejects username conflict during username setup', function () {
diff --git a/tests/Feature/Auth/RegistrationNoticeResendTest.php b/tests/Feature/Auth/RegistrationNoticeResendTest.php
index a2c059f5..331438b9 100644
--- a/tests/Feature/Auth/RegistrationNoticeResendTest.php
+++ b/tests/Feature/Auth/RegistrationNoticeResendTest.php
@@ -1,15 +1,14 @@
 <?php
 
-use App\Mail\RegistrationVerificationMail;
+use App\Jobs\SendVerificationEmailJob;
 use App\Models\User;
 use Illuminate\Foundation\Testing\RefreshDatabase;
-use Illuminate\Support\Facades\Cache;
-use Illuminate\Support\Facades\Mail;
+use Illuminate\Support\Facades\Queue;
 
 uses(RefreshDatabase::class);
 
 it('shows registration notice with email after first step', function () {
-    Mail::fake();
+    Queue::fake();
 
     $this->post('/register', [
         'email' => 'notice@example.com',
@@ -28,33 +27,40 @@ it('prefills register form email from query string', function () {
 });
 
 it('blocks resend while cooldown is active', function () {
-    Mail::fake();
+    Queue::fake();
 
     $this->post('/register', [
         'email' => 'cooldown@example.com',
     ])->assertRedirect('/register/notice');
 
-    $this->from('/register/notice')->post('/register/resend-verification', [
+    $response = $this->from('/register/notice')->post('/register/resend-verification', [
         'email' => 'cooldown@example.com',
-    ])->assertRedirect('/register/notice')
-      ->assertSessionHasErrors('email');
+    ]);
+
+    $response->assertRedirect('/register/notice');
+    $response->assertSessionHasNoErrors();
+    $response->assertSessionHas('status', 'If that email is valid, we sent a verification link.');
+
+    Queue::assertPushed(SendVerificationEmailJob::class, 1);
 });
 
 it('resends verification after cooldown expires', function () {
-    Mail::fake();
+    Queue::fake();
 
     $this->post('/register', [
         'email' => 'resend@example.com',
     ])->assertRedirect('/register/notice');
 
-    $key = 'register:resend:cooldown:' . sha1('resend@example.com');
-    Cache::forget($key);
+    $user = User::query()->where('email', 'resend@example.com')->firstOrFail();
+    $user->forceFill([
+        'last_verification_sent_at' => now()->subMinutes(31),
+    ])->save();
 
     $this->post('/register/resend-verification', [
         'email' => 'resend@example.com',
     ])->assertRedirect('/register/notice');
 
-    Mail::assertQueued(RegistrationVerificationMail::class, 2);
+    Queue::assertPushed(SendVerificationEmailJob::class, 2);
 
     expect(User::query()->where('email', 'resend@example.com')->exists())->toBeTrue();
 });
diff --git a/tests/Feature/Auth/RegistrationQuotaCircuitBreakerTest.php b/tests/Feature/Auth/RegistrationQuotaCircuitBreakerTest.php
new file mode 100644
index 00000000..853d8edb
--- /dev/null
+++ b/tests/Feature/Auth/RegistrationQuotaCircuitBreakerTest.php
@@ -0,0 +1,67 @@
+<?php
+
+use App\Jobs\SendVerificationEmailJob;
+use App\Services\Auth\RegistrationEmailQuotaService;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\Mail;
+use Illuminate\Support\Facades\Queue;
+use Illuminate\Support\Facades\DB;
+
+uses(RefreshDatabase::class);
+
+it('returns generic success even when quota is exceeded', function () {
+    Queue::fake();
+
+    DB::table('system_email_quota')->insert([
+        'period' => now()->format('Y-m'),
+        'sent_count' => 10,
+        'limit_count' => 10,
+        'updated_at' => now(),
+    ]);
+
+    $response = $this->post('/register', [
+        'email' => 'quota-hit@example.com',
+    ]);
+
+    $response->assertRedirect('/register/notice');
+    $response->assertSessionHas('status', 'If that email is valid, we sent a verification link.');
+    Queue::assertPushed(SendVerificationEmailJob::class);
+});
+
+it('blocks actual send in job when monthly quota is exceeded', function () {
+    Mail::fake();
+
+    DB::table('system_email_quota')->insert([
+        'period' => now()->format('Y-m'),
+        'sent_count' => 10,
+        'limit_count' => 10,
+        'updated_at' => now(),
+    ]);
+
+    $eventId = DB::table('email_send_events')->insertGetId([
+        'type' => 'verify_email',
+        'email' => 'quota-block@example.com',
+        'ip' => '127.0.0.1',
+        'user_id' => null,
+        'status' => 'queued',
+        'reason' => null,
+        'created_at' => now(),
+    ]);
+
+    $job = new SendVerificationEmailJob(
+        emailEventId: (int) $eventId,
+        email: 'quota-block@example.com',
+        token: 'raw-token',
+        userId: null,
+        ip: '127.0.0.1'
+    );
+
+    $job->handle(app(RegistrationEmailQuotaService::class));
+
+    Mail::assertNothingSent();
+    $this->assertDatabaseHas('email_send_events', [
+        'id' => $eventId,
+        'status' => 'blocked',
+        'reason' => 'quota',
+    ]);
+});
diff --git a/tests/Feature/Auth/RegistrationTest.php b/tests/Feature/Auth/RegistrationTest.php
index 0e06182b..e86c6abe 100644
--- a/tests/Feature/Auth/RegistrationTest.php
+++ b/tests/Feature/Auth/RegistrationTest.php
@@ -1,7 +1,7 @@
 <?php
 
-use App\Mail\RegistrationVerificationMail;
-use Illuminate\Support\Facades\Mail;
+use App\Jobs\SendVerificationEmailJob;
+use Illuminate\Support\Facades\Queue;
 
 test('registration screen can be rendered', function () {
     $response = $this->get('/register');
@@ -14,7 +14,7 @@ test('registration screen can be rendered', function () {
 });
 
 test('new users can register', function () {
-    Mail::fake();
+    Queue::fake();
 
     $response = $this->post('/register', [
         'email' => 'test@example.com',
@@ -33,5 +33,5 @@ test('new users can register', function () {
         'user_id' => (int) \App\Models\User::query()->where('email', 'test@example.com')->value('id'),
     ]);
 
-    Mail::assertQueued(RegistrationVerificationMail::class);
+    Queue::assertPushed(SendVerificationEmailJob::class);
 });
diff --git a/tests/Feature/Auth/RegistrationTokenVerificationTest.php b/tests/Feature/Auth/RegistrationTokenVerificationTest.php
index 6cf0293c..413650ea 100644
--- a/tests/Feature/Auth/RegistrationTokenVerificationTest.php
+++ b/tests/Feature/Auth/RegistrationTokenVerificationTest.php
@@ -1,11 +1,39 @@
 <?php
 
+use App\Jobs\SendVerificationEmailJob;
 use App\Models\User;
 use Illuminate\Foundation\Testing\RefreshDatabase;
 use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Support\Facades\Queue;
 
 uses(RefreshDatabase::class);
 
+it('stores verification tokens hashed instead of raw token', function () {
+    Queue::fake();
+
+    $this->post('/register', [
+        'email' => 'token-hash@example.com',
+    ])->assertRedirect('/register/notice');
+
+    $rawToken = null;
+    Queue::assertPushed(SendVerificationEmailJob::class, function (SendVerificationEmailJob $job) use (&$rawToken) {
+        $rawToken = $job->token;
+
+        return true;
+    });
+
+    $userId = (int) User::query()->where('email', 'token-hash@example.com')->value('id');
+    $column = Schema::hasColumn('user_verification_tokens', 'token_hash') ? 'token_hash' : 'token';
+    $storedToken = (string) DB::table('user_verification_tokens')
+        ->where('user_id', $userId)
+        ->value($column);
+
+    expect($rawToken)->not->toBeNull();
+    expect($storedToken)->toBe(hash('sha256', (string) $rawToken));
+    expect($storedToken)->not->toBe((string) $rawToken);
+});
+
 it('verifies token and redirects to password setup', function () {
     $user = User::factory()->create([
         'email_verified_at' => null,
@@ -13,9 +41,10 @@ it('verifies token and redirects to password setup', function () {
         'is_active' => false,
     ]);
 
+    $column = Schema::hasColumn('user_verification_tokens', 'token_hash') ? 'token_hash' : 'token';
     DB::table('user_verification_tokens')->insert([
         'user_id' => $user->id,
-        'token' => 'verify-token-1',
+        $column => hash('sha256', 'verify-token-1'),
         'expires_at' => now()->addHour(),
         'created_at' => now(),
         'updated_at' => now(),
@@ -33,7 +62,8 @@ it('verifies token and redirects to password setup', function () {
     ]);
 
     expect($user->fresh()->email_verified_at)->not->toBeNull();
-    $this->assertDatabaseMissing('user_verification_tokens', ['token' => 'verify-token-1']);
+    $column = Schema::hasColumn('user_verification_tokens', 'token_hash') ? 'token_hash' : 'token';
+    $this->assertDatabaseMissing('user_verification_tokens', [$column => hash('sha256', 'verify-token-1')]);
 });
 
 it('rejects expired token', function () {
@@ -43,9 +73,10 @@ it('rejects expired token', function () {
         'is_active' => false,
     ]);
 
+    $column = Schema::hasColumn('user_verification_tokens', 'token_hash') ? 'token_hash' : 'token';
     DB::table('user_verification_tokens')->insert([
         'user_id' => $user->id,
-        'token' => 'expired-token-1',
+        $column => hash('sha256', 'expired-token-1'),
         'expires_at' => now()->subMinute(),
         'created_at' => now(),
         'updated_at' => now(),
@@ -72,3 +103,27 @@ it('rejects unknown token', function () {
     $response->assertSessionHasErrors('email');
     $this->assertGuest();
 });
+
+it('rejects token reuse after successful verification', function () {
+    $user = User::factory()->create([
+        'email_verified_at' => null,
+        'onboarding_step' => 'email',
+        'is_active' => false,
+    ]);
+
+    $column = Schema::hasColumn('user_verification_tokens', 'token_hash') ? 'token_hash' : 'token';
+    DB::table('user_verification_tokens')->insert([
+        'user_id' => $user->id,
+        $column => hash('sha256', 'one-time-token'),
+        'expires_at' => now()->addHour(),
+        'created_at' => now(),
+        'updated_at' => now(),
+    ]);
+
+    $this->get('/verify/one-time-token')->assertRedirect('/setup/password');
+    auth()->logout();
+
+    $secondTry = $this->from('/login')->get('/verify/one-time-token');
+    $secondTry->assertRedirect('/login');
+    $secondTry->assertSessionHasErrors('email');
+});
diff --git a/tests/Feature/Auth/RegistrationVerificationMailTest.php b/tests/Feature/Auth/RegistrationVerificationMailTest.php
index 3e294db0..7d13360c 100644
--- a/tests/Feature/Auth/RegistrationVerificationMailTest.php
+++ b/tests/Feature/Auth/RegistrationVerificationMailTest.php
@@ -1,8 +1,10 @@
 <?php
 
+use App\Jobs\SendVerificationEmailJob;
 use App\Mail\RegistrationVerificationMail;
 use Illuminate\Contracts\Queue\ShouldQueue;
 use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\Queue;
 
 uses(RefreshDatabase::class);
 
@@ -28,14 +30,14 @@ it('registration email contains verification link expiry and support url', funct
     expect($html)->toContain('https://skinbase.example/support');
 });
 
-it('registration endpoint still queues verification mail', function () {
-    \Illuminate\Support\Facades\Mail::fake();
+it('registration endpoint queues verification email job', function () {
+    Queue::fake();
 
     $this->post('/register', [
         'email' => 'mail-test@example.com',
     ])->assertRedirect('/register/notice');
 
-    \Illuminate\Support\Facades\Mail::assertQueued(RegistrationVerificationMail::class);
+    Queue::assertPushed(SendVerificationEmailJob::class);
     $this->assertDatabaseHas('users', [
         'email' => 'mail-test@example.com',
         'onboarding_step' => 'email',