diff --git a/Events.php b/Events.php
index 6b920356..e1519bc0 100644
--- a/Events.php
+++ b/Events.php
@@ -8,18 +8,20 @@
 
 namespace humhub\modules\mail;
 
-use humhub\modules\mail\models\Message;
-use humhub\modules\mail\models\UserMessageTag;
-use humhub\modules\mail\permissions\StartConversation;
-use humhub\modules\user\models\User;
-use Yii;
 use humhub\modules\mail\helpers\Url;
+use humhub\modules\mail\models\Config;
 use humhub\modules\mail\models\MessageEntry;
+use humhub\modules\mail\models\Message;
+use humhub\modules\mail\models\UserMessageTag;
 use humhub\modules\mail\models\UserMessage;
+use humhub\modules\mail\permissions\SendMail;
+use humhub\modules\mail\permissions\StartConversation;
+use humhub\modules\mail\search\SearchProvider;
 use humhub\modules\mail\widgets\NewMessageButton;
 use humhub\modules\mail\widgets\NotificationInbox;
-use humhub\modules\mail\permissions\SendMail;
-use humhub\modules\mail\models\Config;
+use humhub\widgets\MetaSearchWidget;
+use humhub\modules\user\models\User;
+use Yii;
 
 /**
  * Description of Events
@@ -28,7 +30,6 @@
  */
 class Events
 {
-
     /**
      * @param $event
      */
@@ -218,4 +219,16 @@ public static function onRestApiAddRules()
         ], 'mail');
     }
 
+    public static function onMetaSearchWidgetInit($event)
+    {
+        if (Yii::$app->user->isGuest) {
+            return;
+        }
+
+        /* @var MetaSearchWidget $widget */
+        $widget = $event->sender;
+
+        $widget->addProvider(SearchProvider::class);
+    }
+
 }
diff --git a/config.php b/config.php
index fd6798f8..33a7415f 100644
--- a/config.php
+++ b/config.php
@@ -17,5 +17,6 @@
         ['class' => ProfileHeaderControls::class, 'event' => ProfileHeaderControls::EVENT_INIT, 'callback' => ['humhub\modules\mail\Events', 'onProfileHeaderControlsInit']],
         ['class' => IntegrityController::class, 'event' => IntegrityController::EVENT_ON_RUN, 'callback' => ['humhub\modules\mail\Events', 'onIntegrityCheck']],
         ['class' => 'humhub\modules\rest\Module', 'event' => 'restApiAddRules', 'callback' => ['humhub\modules\mail\Events', 'onRestApiAddRules']],
+        ['class' => 'humhub\widgets\MetaSearchWidget', 'event' => 'init', 'callback' => ['humhub\modules\mail\Events', 'onMetaSearchWidgetInit']],
     ],
-];
\ No newline at end of file
+];
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index abf7f9b5..8f9c51b4 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,6 +1,10 @@
 Changelog
 =========
 
+3.2.2 (Unreleased)
+----------------------
+- Enh #382: Implement provider for meta searching
+
 3.2.1 (April 15, 2024)
 ----------------------
 - Enh #370: Remove message entries on disable module
diff --git a/models/forms/InboxFilterForm.php b/models/forms/InboxFilterForm.php
index 02c695d4..6776cb84 100644
--- a/models/forms/InboxFilterForm.php
+++ b/models/forms/InboxFilterForm.php
@@ -1,13 +1,10 @@
 <?php
 
-
 namespace humhub\modules\mail\models\forms;
 
-
 use humhub\modules\mail\models\Message;
 use humhub\modules\mail\models\MessageEntry;
 use humhub\modules\mail\models\UserMessage;
-use humhub\modules\mail\models\MessageTag;
 use humhub\modules\mail\models\UserMessageTag;
 use humhub\modules\mail\Module;
 use humhub\modules\ui\filter\models\QueryFilter;
@@ -16,11 +13,9 @@
 use yii\db\conditions\ExistsCondition;
 use yii\db\conditions\LikeCondition;
 use yii\db\conditions\OrCondition;
-use yii\db\Expression;
 
 class InboxFilterForm extends QueryFilter
 {
-
     /**
      * @var string
      */
@@ -81,6 +76,14 @@ public function rules()
     public function init()
     {
         parent::init();
+
+        if ($this->autoLoad === self::AUTO_LOAD_ALL || $this->autoLoad === self::AUTO_LOAD_GET) {
+            $keyword = Yii::$app->request->get('keyword');
+            if ($keyword !== null) {
+                $this->term = $keyword;
+            }
+        }
+
         $this->query = UserMessage::findByUser();
     }
 
@@ -95,7 +98,7 @@ public function apply()
 
             $this->query->andWhere(new OrCondition([
                 new ExistsCondition('EXISTS', $messageEntryContentSubQuery),
-                $this->createTermLikeCondition('message.title')
+                $this->createTermLikeCondition('message.title'),
             ]));
         }
 
@@ -163,4 +166,9 @@ public function formName()
     {
         return '';
     }
-}
\ No newline at end of file
+
+    public function isFiltered(): bool
+    {
+        return !empty($this->term) || !empty($this->participants) || !empty($this->tags);
+    }
+}
diff --git a/module.json b/module.json
index 58b6a157..ad941cb2 100644
--- a/module.json
+++ b/module.json
@@ -8,9 +8,9 @@
     "messenger",
     "communication"
   ],
-  "version": "3.2.1",
+  "version": "3.2.2",
   "humhub": {
-    "minVersion": "1.15"
+    "minVersion": "1.16"
   },
   "homepage": "https://github.com/humhub/mail",
   "authors": [
diff --git a/search/SearchProvider.php b/search/SearchProvider.php
new file mode 100644
index 00000000..5f4c1a3c
--- /dev/null
+++ b/search/SearchProvider.php
@@ -0,0 +1,106 @@
+<?php
+/**
+ * @link https://www.humhub.org/
+ * @copyright Copyright (c) HumHub GmbH & Co. KG
+ * @license https://www.humhub.com/licences
+ */
+
+namespace humhub\modules\mail\search;
+
+use humhub\interfaces\MetaSearchProviderInterface;
+use humhub\modules\mail\models\forms\InboxFilterForm;
+use humhub\services\MetaSearchService;
+use Yii;
+
+/**
+ * Mail Meta Search Provider
+ */
+class SearchProvider implements MetaSearchProviderInterface
+{
+    private ?MetaSearchService $service = null;
+    public ?string $keyword = null;
+    public string|array|null $route = '/mail/mail/index';
+
+    /**
+     * @inheritdoc
+     */
+    public function getName(): string
+    {
+        return Yii::t('MailModule.base', 'Messages');
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getSortOrder(): int
+    {
+        return 400;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getRoute(): string|array
+    {
+        return $this->route;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getAllResultsText(): string
+    {
+        return $this->getService()->hasResults()
+            ? Yii::t('base', 'Show all results')
+            : Yii::t('MailModule.base', 'Advanced Messages Search');
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getIsHiddenWhenEmpty(): bool
+    {
+        return true;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getResults(int $maxResults): array
+    {
+        $filter = new InboxFilterForm(['term' => $this->getKeyword()]);
+        $filter->apply();
+        $totalCount = $filter->query->count();
+        $resultsQuery = $filter->query->limit($maxResults);
+
+        $results = [];
+        foreach ($resultsQuery->all() as $userMessage) {
+            $results[] = new SearchRecord($userMessage);
+        }
+
+        return [
+            'totalCount' => $totalCount,
+            'results' => $results,
+        ];
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getService(): MetaSearchService
+    {
+        if ($this->service === null) {
+            $this->service = new MetaSearchService($this);
+        }
+
+        return $this->service;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getKeyword(): ?string
+    {
+        return $this->keyword;
+    }
+}
diff --git a/search/SearchRecord.php b/search/SearchRecord.php
new file mode 100644
index 00000000..46ecf9a9
--- /dev/null
+++ b/search/SearchRecord.php
@@ -0,0 +1,72 @@
+<?php
+/**
+ * @link https://www.humhub.org/
+ * @copyright Copyright (c) HumHub GmbH & Co. KG
+ * @license https://www.humhub.com/licences
+ */
+
+namespace humhub\modules\mail\search;
+
+use humhub\interfaces\MetaSearchResultInterface;
+use humhub\modules\mail\helpers\Url;
+use humhub\modules\mail\models\UserMessage;
+use humhub\modules\mail\widgets\InboxMessagePreview;
+use humhub\modules\ui\icon\widgets\Icon;
+use humhub\modules\user\models\User;
+use humhub\modules\user\widgets\Image;
+
+/**
+ * Search Record for Message Entry
+ */
+class SearchRecord implements MetaSearchResultInterface
+{
+    public ?InboxMessagePreview $preview = null;
+
+    public function __construct(UserMessage $userMessage)
+    {
+        $this->preview = new InboxMessagePreview(['userMessage' => $userMessage]);
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getImage(): string
+    {
+        $lastParticipant = $this->preview->lastParticipant();
+
+        if ($lastParticipant instanceof User) {
+            return Image::widget([
+                'user' => $lastParticipant,
+                'width' => 36,
+                'link' => false,
+                'hideOnlineStatus' => true,
+            ]);
+        }
+
+        return Icon::get('envelope');
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getTitle(): string
+    {
+        return $this->preview->getMessage()->title;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getDescription(): string
+    {
+        return $this->preview->getMessagePreview();
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getUrl(): string
+    {
+        return Url::toMessenger($this->preview->getMessage());
+    }
+}
diff --git a/widgets/InboxMessagePreview.php b/widgets/InboxMessagePreview.php
index 2ae85908..c0cd6ff2 100644
--- a/widgets/InboxMessagePreview.php
+++ b/widgets/InboxMessagePreview.php
@@ -1,9 +1,7 @@
 <?php
 
-
 namespace humhub\modules\mail\widgets;
 
-
 use DateTime;
 use DateTimeZone;
 use humhub\components\Widget;
@@ -34,7 +32,7 @@ public function run()
             'messageText' => $this->getMessagePreview(),
             'messageTime' => $this->getMessageTime(),
             'lastParticipant' => $this->lastParticipant(),
-            'options' => $this->getOptions()
+            'options' => $this->getOptions(),
         ]);
     }
 
@@ -48,11 +46,11 @@ private function getOptions(): array
                 'message-id' => $message->id,
                 'action-click' => 'mail.notification.loadMessage',
                 'action-url' => Url::toMessenger($message),
-            ]
+            ],
         ];
     }
 
-    private function getMessage(): Message
+    public function getMessage(): Message
     {
         if ($this->_message === null) {
             $this->_message = $this->userMessage->message;
@@ -61,7 +59,7 @@ private function getMessage(): Message
         return $this->_message;
     }
 
-    private function lastParticipant(): ?User
+    public function lastParticipant(): ?User
     {
         return $this->isGroupChat()
             ? $this->getLastEntry()->user
@@ -88,7 +86,7 @@ private function getMessageTitle(): string
     {
         if ($this->isGroupChat()) {
             $suffix = ', ' . Yii::t('MailModule.base', '{n,plural,=1{# other} other{# others}}', [
-                'n' => $this->getMessage()->getUsersCount() - 2
+                'n' => $this->getMessage()->getUsersCount() - 2,
             ]);
         } else {
             $suffix = '';
@@ -97,7 +95,7 @@ private function getMessageTitle(): string
         return $this->getUsername() . $suffix;
     }
 
-    private function getMessagePreview(): string
+    public function getMessagePreview(): string
     {
         switch ($this->getLastEntry()->type) {
             case AbstractMessageEntry::TYPE_USER_JOINED:
@@ -131,7 +129,7 @@ private function getMessageTime(): string
         if ($datetime->format('Y-m-d') === date('Y-m-d')) {
             // Show time for today
             return Yii::$app->formatter->asTime($datetime, 'short');
-        } else if (time() - $datetime->getTimestamp() < 3600 * 24 * 7) {
+        } elseif (time() - $datetime->getTimestamp() < 3600 * 24 * 7) {
             // Show week day for week ago messages
             switch ($datetime->format('w')) {
                 case 0: return Yii::t('MailModule.base', 'Sunday');
diff --git a/widgets/views/inboxFilter.php b/widgets/views/inboxFilter.php
index cbc6bd33..b58d1a2e 100644
--- a/widgets/views/inboxFilter.php
+++ b/widgets/views/inboxFilter.php
@@ -1,8 +1,6 @@
 <?php
 
-
 use humhub\libs\Html;
-use humhub\modules\mail\helpers\Url;
 use humhub\modules\mail\models\forms\InboxFilterForm;
 use humhub\modules\mail\widgets\ConversationTagPicker;
 use humhub\modules\mail\widgets\ManageTagsLink;
@@ -13,10 +11,9 @@
 use humhub\modules\user\widgets\UserPickerField;
 use humhub\widgets\Link;
 
-
 /* @var $this View */
 /* @var $options array */
-/* @var $model InboxFilterForm# */
+/* @var $model InboxFilterForm */
 ?>
 
 <?= Html::beginTag('div', $options) ?>
@@ -24,14 +21,22 @@
     ->id('conversation-filter-link')
     ->href('#mail-filter-menu')
     ->icon('filter')
-    ->options(['data-toggle' => "collapse"])
+    ->options(['data-toggle' => 'collapse'])
     ->sm() ?>
 
-<div id="mail-filter-menu" class="collapse clearfix">
+<div id="mail-filter-menu" class="collapse clearfix<?= $model->isFiltered() ? ' in' : '' ?>">
     <hr>
     <?php $filterForm = ActiveForm::begin() ?>
 
-    <?= TextFilterInput::widget(['id' => 'term', 'category' => 'term', 'options' => ['placeholder' => Yii::t('MailModule.base', 'Search')]]) ?>
+    <?= TextFilterInput::widget([
+        'id' => 'term',
+        'category' => 'term',
+        'view' => '@mail/widgets/views/inboxFilterTextInput',
+        'options' => [
+            'placeholder' => Yii::t('MailModule.base', 'Search'),
+            'value' => $model->term,
+        ],
+    ]) ?>
 
     <div class="form-group">
         <?= PickerFilterInput::widget([
diff --git a/widgets/views/inboxFilterTextInput.php b/widgets/views/inboxFilterTextInput.php
new file mode 100644
index 00000000..b8680ca8
--- /dev/null
+++ b/widgets/views/inboxFilterTextInput.php
@@ -0,0 +1,14 @@
+<?php
+/**
+ * @link https://www.humhub.org/
+ * @copyright Copyright (c) HumHub GmbH & Co. KG
+ * @license https://www.humhub.com/licences
+ */
+
+use yii\bootstrap\Html;
+
+/* @var array $options */
+?>
+<div class="form-group">
+    <?= Html::textInput(null, $options['value'] ?? null, $options) ?>
+</div>