diff --git a/overrides/webklex/php-imap/src/Connection/Protocols/ImapProtocol.php b/overrides/webklex/php-imap/src/Connection/Protocols/ImapProtocol.php
index fc1e41499..32a6fa41e 100644
--- a/overrides/webklex/php-imap/src/Connection/Protocols/ImapProtocol.php
+++ b/overrides/webklex/php-imap/src/Connection/Protocols/ImapProtocol.php
@@ -798,7 +798,7 @@ public function getMessageNumber(string $id): int {
             }
         }
 
-        throw new MessageNotFoundException('message number not found');
+        throw new MessageNotFoundException('message number not found: ' . $id);
     }
 
     /**