From 33ec98b90ee12ebf4bda8d7817fb2e55f0db2112 Mon Sep 17 00:00:00 2001
From: Till Brehm <tbrehm@ispconfig.org>
Date: Thu, 28 Jul 2016 10:48:29 +0200
Subject: [PATCH] Fixed master.cf service detection for old postfix versions.

---
 install/lib/installer_base.lib.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/install/lib/installer_base.lib.php b/install/lib/installer_base.lib.php
index 3b2dadf9d2..fb587770bd 100644
--- a/install/lib/installer_base.lib.php
+++ b/install/lib/installer_base.lib.php
@@ -823,8 +823,8 @@ class installer_base {
 			$postfix_service = @($out[0]=='')?false:true;
         } else { //* fallback - Postfix < 2.9
 			$content = rf($conf['postfix']['config_dir'].'/master.cf');
-			$regex = '/[^#]'.$service.'.*.'.$type.'.*/';
-			$postfix_service = @(!preg_match($regex, $content))?true:false;
+			$regex = "/^((?!#)".$service.".*".$type.".*)$/m"; 
+			$postfix_service = @(preg_match($regex, $content))?true:false;
 		}
 
 		return $postfix_service;
-- 
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