diff --git a/src/database/migrations/2021_08_27_105020_drop_greylist_connect_index.php b/src/database/migrations/2021_08_27_105020_drop_greylist_connect_index.php
new file mode 100644
--- /dev/null
+++ b/src/database/migrations/2021_08_27_105020_drop_greylist_connect_index.php
@@ -0,0 +1,56 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+// phpcs:ignore
+class DropGreylistConnectIndex extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table(
+            'greylist_connect',
+            function (Blueprint $table) {
+                /**
+                 * Index for recipient request.
+                 */
+                $table->dropIndex(
+                    'ssrnn_idx'
+                );
+            }
+        );
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table(
+            'greylist_connect',
+            function (Blueprint $table) {
+                /**
+                 * Index for recipient request.
+                 */
+                $table->index(
+                    [
+                        'sender_local',
+                        'sender_domain',
+                        'recipient_hash',
+                        'net_id',
+                        'net_type'
+                    ],
+                    'ssrnn_idx'
+                );
+            }
+        );
+    }
+}