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-rw-r--r--program/lib/Roundcube/rcube_message.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/program/lib/Roundcube/rcube_message.php b/program/lib/Roundcube/rcube_message.php
index dc7080746..60161a419 100644
--- a/program/lib/Roundcube/rcube_message.php
+++ b/program/lib/Roundcube/rcube_message.php
@@ -616,7 +616,7 @@ class rcube_message
foreach ($this->inline_parts as $inline_object) {
$part_url = $this->get_part_url($inline_object->mime_id, true);
- if ($inline_object->content_id)
+ if (isset($inline_object->content_id))
$a_replaces['cid:'.$inline_object->content_id] = $part_url;
if ($inline_object->content_location) {
$a_replaces[$inline_object->content_location] = $part_url;