diff --git a/includes/sources/class-cf7-source.php b/includes/sources/class-cf7-source.php
new file mode 100644
index 0000000..79dbe8d
--- /dev/null
+++ b/includes/sources/class-cf7-source.php
@@ -0,0 +1,94 @@
+<?php
+declare(strict_types=1);
+
+namespace Cf7stg;
+
+final class CF7Source implements Interface_Spam_Source
+{
+    public function register(): void
+    {
+        add_filter('wpcf7_spam', [$this, 'on_spam'], 9999, 2);
+        add_action('wpcf7_submission', [$this, 'on_submission'], 20, 1);
+    }
+
+    public function on_spam($spam, $submission): bool
+    {
+        if ($spam === true && is_object($submission)) {
+            $this->enqueue_from_submission($submission, 'Honeypot or filter');
+        }
+        return (bool)$spam;
+    }
+
+    public function on_submission($submission): void
+    {
+        if (!is_object($submission) || !method_exists($submission, 'get_status')) return;
+        if ($submission->get_status() !== 'spam') return;
+        $this->enqueue_from_submission($submission, 'Статус spam');
+    }
+
+    private function enqueue_from_submission($submission, string $fallback_reason): void
+    {
+        $fields = method_exists($submission, 'get_posted_data') ? (array)$submission->get_posted_data() : [];
+        $form = method_exists($submission, 'get_contact_form') ? $submission->get_contact_form() : null;
+        $form_title = $form && method_exists($form, 'title') ? $form->title() : '';
+        $form_id = $form && method_exists($form, 'id') ? (int)$form->id() : null;
+
+        $reason = $this->detect_reason($submission, $fallback_reason);
+        $classification = Classifier::classify($fields, ['reason' => $reason]);
+
+        $post_id = FlamingoHelper::find_post_id_for_submission($submission);
+        if ($post_id !== null && Queue::exists_for_flamingo($post_id, false)) {
+            return;
+        }
+
+        $ip = $this->remote_addr();
+        $ua = isset($_SERVER['HTTP_USER_AGENT']) ? (string)$_SERVER['HTTP_USER_AGENT'] : '';
+
+        $payload = MessageFormatter::build([
+            'fields'         => $fields,
+            'classification' => $classification,
+            'site_title'     => Settings::get_site_title(),
+            'form_title'     => $form_title,
+            'submitted_at'   => wp_date('d.m.Y H:i'),
+            'reason'         => $reason,
+            'ip'             => $ip,
+            'user_agent'     => $ua,
+            'is_retro'       => false,
+        ]);
+
+        Queue::enqueue([
+            'flamingo_post_id' => $post_id,
+            'form_id'          => $form_id,
+            'source_key'       => 'cf7',
+            'payload_json'     => wp_json_encode($payload),
+            'label'            => $classification['label'],
+            'is_retro'         => 0,
+        ]);
+    }
+
+    private function detect_reason($submission, string $fallback): string
+    {
+        $data = method_exists($submission, 'get_posted_data') ? (array)$submission->get_posted_data() : [];
+        // Honeypot plugin by Nocean adds a non-empty field usually prefixed by 'wpcf7_hp' or a custom name.
+        foreach ($data as $k => $v) {
+            if (is_string($k) && (stripos($k, 'honeypot') !== false || stripos($k, 'wpcf7_hp') !== false) && !empty($v)) {
+                return 'Honeypot';
+            }
+        }
+        if (method_exists($submission, 'get_spam_log') && $submission->get_spam_log()) {
+            return 'Akismet';
+        }
+        return $fallback;
+    }
+
+    private function remote_addr(): string
+    {
+        foreach (['HTTP_X_FORWARDED_FOR', 'REMOTE_ADDR'] as $key) {
+            if (!empty($_SERVER[$key])) {
+                $first = explode(',', (string)$_SERVER[$key])[0];
+                return trim($first);
+            }
+        }
+        return '';
+    }
+}
diff --git a/includes/sources/interface-spam-source.php b/includes/sources/interface-spam-source.php
new file mode 100644
index 0000000..2a642d9
--- /dev/null
+++ b/includes/sources/interface-spam-source.php
@@ -0,0 +1,9 @@
+<?php
+declare(strict_types=1);
+
+namespace Cf7stg;
+
+interface Interface_Spam_Source
+{
+    public function register(): void;
+}