From 0808c39b58ab8c72b7fce53c4b5a47667c6c0d84 Mon Sep 17 00:00:00 2001
From: Hugo Vink <hugovink96@hotmail.com>
Date: Thu, 5 Sep 2019 11:10:02 +0200
Subject: [PATCH] Possible fix issue #377

fix #377
---
 src/PhpImap/Mailbox.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/PhpImap/Mailbox.php b/src/PhpImap/Mailbox.php
index 0999815c..a4e5dbaa 100644
--- a/src/PhpImap/Mailbox.php
+++ b/src/PhpImap/Mailbox.php
@@ -1093,7 +1093,7 @@ public function downloadAttachment($dataInfo, $params, $partStructure, $mailId,
             $fileName = $fileName;
         }
 
-        $attachmentId = sha1($fileName.$partStructure->id);
+        $attachmentId = sha1($fileName . ($partStructure->ifid ? $partStructure->id : ""));
 
         $attachment = new IncomingMailAttachment();
         $attachment->id = $attachmentId;