diff --git a/mailpoet/lib/Models/NewsletterSegment.php b/mailpoet/lib/Models/NewsletterSegment.php
index c500c39237..3307c77068 100644
--- a/mailpoet/lib/Models/NewsletterSegment.php
+++ b/mailpoet/lib/Models/NewsletterSegment.php
@@ -6,7 +6,33 @@ namespace MailPoet\Models;
  * @property int $newsletterId
  * @property int $segmentId
  * @property string $updatedAt
+ *
+ * @deprecated This model is deprecated. Use \MailPoet\Newsletter\Segment\NewsletterSegmentRepository
+ * and \MailPoet\Entities\NewsletterSegmentEntity instead. This class can be removed after 2024-05-30.
  */
 class NewsletterSegment extends Model {
   public static $_table = MP_NEWSLETTER_SEGMENT_TABLE; // phpcs:ignore PSR2.Classes.PropertyDeclaration
+
+  /**
+   * @deprecated This is here for displaying the deprecation warning for properties.
+   */
+  public function __get($key) {
+    self::deprecationError('property "' . $key . '"');
+    return parent::__get($key);
+  }
+
+  /**
+   * @deprecated This is here for displaying the deprecation warning for static calls.
+   */
+  public static function __callStatic($name, $arguments) {
+    self::deprecationError($name);
+    return parent::__callStatic($name, $arguments);
+  }
+
+  private static function deprecationError($methodName) {
+    trigger_error(
+      'Calling ' . esc_html($methodName) . ' is deprecated and will be removed. Use \MailPoet\Newsletter\Segment\NewsletterSegmentRepository and \MailPoet\Entities\NewsletterSegmentEntity instead.',
+      E_USER_DEPRECATED
+    );
+  }
 }