From fc52af24f1418d6590a2d37a0d8cc31b123e38f6 Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Tue, 19 Aug 2014 12:08:35 -0400
Subject: [PATCH] Fix merge error that disabled contact drag'n'drop

---
 program/steps/mail/func.inc |   10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/program/steps/mail/func.inc b/program/steps/mail/func.inc
index 8de76c3..2938e91 100644
--- a/program/steps/mail/func.inc
+++ b/program/steps/mail/func.inc
@@ -1802,15 +1802,19 @@
 
     // Try Return-Path
     if ($from_idx === null && ($return_path = $MESSAGE->headers->others['return-path'])) {
+        $return_path = array_map('strtolower', (array) $return_path);
+
         foreach ($identities as $idx => $ident) {
             // Return-Path header contains an email address, but on some mailing list
             // it can be e.g. <pear-dev-return-55250-local=domain.tld@lists.php.net>
             // where local@domain.tld is the address we're looking for (#1489241)
-            $ident1 = $ident['email_ascii'];
+            $ident1 = strtolower($ident['email_ascii']);
             $ident2 = str_replace('@', '=', $ident1);
+            $ident1 = '<' . $ident1 . '>';
+            $ident2 = '-' . $ident2 . '@';
 
-            foreach ((array)$return_path as $path) {
-                if (stripos($path, $ident1) !== false || stripos($path, $ident2)) {
+            foreach ($return_path as $path) {
+                if ($path == $ident1 || stripos($path, $ident2)) {
                     $from_idx = $idx;
                     break 2;
                 }

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