diff --git a/include/emailinbox.php b/include/emailinbox.php
index 6968239..25c78a9 100644
--- a/include/emailinbox.php
+++ b/include/emailinbox.php
@@ -21,10 +21,10 @@ class Emailinbox extends Renderer {
             echo "IMAP connection failed: " . implode(",", $ex->getErrors('all'));
             die();
         }
-        $headers = $this->mbox->getMailsInfo($mailsIds);
-        if (!$headers)  {
+        if (!$mailsIds)  {
             return [];
         }
+        $headers = $this->mbox->getMailsInfo($mailsIds);
         foreach ($headers as $header) {
             try {
                 $date = \DateTime::createFromFormat('D, d M Y H:i:s O', str_replace([' (CET)', ' (CEST)', ' (UTC)'], '' , $header->date));