From e48f8945b32ab5b67f1cdeb53a37d3d196e31e4d Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Fri, 20 May 2016 05:19:01 -0400
Subject: [PATCH] Fix bug where message list columns could be in wrong order after column drag-n-drop and list sorting

---
 plugins/additional_message_headers/additional_message_headers.php |   56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 56 insertions(+), 0 deletions(-)

diff --git a/plugins/additional_message_headers/additional_message_headers.php b/plugins/additional_message_headers/additional_message_headers.php
new file mode 100644
index 0000000..5c07ec8
--- /dev/null
+++ b/plugins/additional_message_headers/additional_message_headers.php
@@ -0,0 +1,56 @@
+<?php
+
+/**
+ * Additional Message Headers
+ *
+ * Very simple plugin which will add additional headers
+ * to or remove them from outgoing messages.
+ *
+ * Enable the plugin in config.inc.php and add your desired headers:
+ * $config['additional_message_headers'] = array('User-Agent' => 'My-Very-Own-Webmail');
+ *
+ * @version @package_version@
+ * @author Ziba Scott
+ * @website http://roundcube.net
+ */
+class additional_message_headers extends rcube_plugin
+{
+    function init()
+    {
+        $this->add_hook('message_before_send', array($this, 'message_headers'));
+    }
+
+    function message_headers($args)
+    {
+        $this->load_config();
+
+        $rcube = rcube::get_instance();
+
+        // additional email headers
+        $additional_headers = $rcube->config->get('additional_message_headers', array());
+
+        if (!empty($additional_headers)) {
+            // Mail_mime >= 1.9.0
+            if (method_exists($message, 'isMultipart')) {
+                $args['message']->headers($additional_headers, true);
+            }
+            else {
+                $headers = $args['message']->headers();
+
+                foreach ((array) $additional_headers as $header => $value) {
+                    if ($value === null) {
+                        unset($headers[$header]);
+                    }
+                    else {
+                        $headers[$header] = $value;
+                    }
+                }
+
+                $args['message']->_headers = array();
+                $args['message']->headers($headers);
+            }
+        }
+
+        return $args;
+    }
+}

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