From b4316b34bb52a7dfd042e165226b4f4b975be654 Mon Sep 17 00:00:00 2001
From: tokul <tokul@7612ce4b-ef26-0410-bec9-ea0150e637f0>
Date: Wed, 20 Jul 2005 08:47:47 +0000
Subject: [PATCH] Add extra checks in In-Reply-To header generation. Removes
 E_NOTICE level error in php 5.0.4+ (#1206474)

git-svn-id: https://svn.code.sf.net/p/squirrelmail/code/trunk/squirrelmail@9787 7612ce4b-ef26-0410-bec9-ea0150e637f0
---
 ChangeLog                       | 4 +++-
 class/deliver/Deliver.class.php | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index e7e55866..56336139 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -400,7 +400,9 @@ Version 1.5.1 -- CVS
     that don't support GNU C time zone mappings (#1177067).
   - Use default color theme in logout_error function when possible.
   - Fixes for increased error checking in PHP 5.1 array_shift() (#1237160).
-
+  - Added extra checks in delivery class for In-Reply-To header. Fixes
+    E_NOTICE level warnings in php 5.0.4 and later (#1206474). [php5]
+	
 Version 1.5.0 - 2 February 2004
 -------------------------------
   - Added new preference that determines cursor focus when replying
diff --git a/class/deliver/Deliver.class.php b/class/deliver/Deliver.class.php
index 4d526a78..7652bcd3 100644
--- a/class/deliver/Deliver.class.php
+++ b/class/deliver/Deliver.class.php
@@ -445,7 +445,9 @@ class Deliver {
 
         /* Insert the rest of the header fields */
         $header[] = 'Message-ID: '. $message_id . $rn;
-        if ($reply_rfc822_header->message_id) {
+        if (is_object($reply_rfc822_header) && 
+            isset($reply_rfc822_header->message_id) &&
+            $reply_rfc822_header->message_id) {
             $rep_message_id = $reply_rfc822_header->message_id;
         //        $this->strip_crlf($message_id);
             $header[] = 'In-Reply-To: '.$rep_message_id . $rn;
-- 
2.25.1