diff --git a/application/Espo/Core/Mail/Importer.php b/application/Espo/Core/Mail/Importer.php
index 077902200d..a07d591b26 100644
--- a/application/Espo/Core/Mail/Importer.php
+++ b/application/Espo/Core/Mail/Importer.php
@@ -62,7 +62,7 @@ class Importer
 
             $subject = $message->subject;
             if ($subject !== '0' && empty($subject)) {
-                $subject = '--empty--';
+                $subject = '(No Subject)';
             }
 
             $email->set('isHtml', false);