From be9aa5aba24640b15205060cda442d02f7be799c Mon Sep 17 00:00:00 2001
From: Evgeni Golov <evgeni@golov.de>
Date: Thu, 27 Feb 2014 08:31:05 +0100
Subject: check_mailq: try to autodetect which mailq implementation we are
 using

This is done by looking at some common directories and files each
MTA installs on the system. If no known file is found, the old default
sendmail is used. Of course this still can be overridden by -M.

diff --git a/plugins-scripts/check_mailq.pl b/plugins-scripts/check_mailq.pl
index 2a805b6..cc040eb 100755
--- a/plugins-scripts/check_mailq.pl
+++ b/plugins-scripts/check_mailq.pl
@@ -605,7 +605,30 @@ sub process_arguments(){
 			exit $ERRORS{'UNKNOWN'};
 		}
 	}else{
-		$mailq = 'sendmail' ;
+		if (defined $utils::PATH_TO_QMAIL_QSTAT
+		    && -x $utils::PATH_TO_QMAIL_QSTAT)
+		{
+			$mailq = 'qmail';
+		}
+		elsif (-d '/var/lib/postfix' || -d '/var/local/lib/postfix'
+		       || -e '/usr/sbin/postfix' || -e '/usr/local/sbin/postfix')
+		{
+			$mailq = 'postfix';
+		}
+		elsif (-d '/usr/lib/exim4' || -d '/usr/local/lib/exim4'
+		       || -e '/usr/sbin/exim' || -e '/usr/local/sbin/exim')
+		{
+			$mailq = 'exim';
+		}
+		elsif (-d '/usr/lib/nullmailer' || -d '/usr/local/lib/nullmailer'
+		       || -e '/usr/sbin/nullmailer-send'
+		       || -e '/usr/local/sbin/nullmailer-send')
+		{
+			$mailq = 'nullmailer';
+		}
+		else {
+			$mailq = 'sendmail';
+		}
 	}
 		
 	return $ERRORS{'OK'};
-- 
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