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-rw-r--r--vendor/email_message/email_message.php3
1 files changed, 3 insertions, 0 deletions
diff --git a/vendor/email_message/email_message.php b/vendor/email_message/email_message.php
index dcef90c..a94e996 100644
--- a/vendor/email_message/email_message.php
+++ b/vendor/email_message/email_message.php
@@ -2608,6 +2608,9 @@ class email_message_class
if(IsSet($file['Cache'])
&& $file['Cache'])
$definition['Cache'] = 1;
+ if(IsSet($file['Content-ID'])
+ && $file['Content-ID'])
+ $definition['Content-ID'] = $file['Content-ID'];
return("");
}