From 2d61d4b43eb58662474e8aff51d6d8e8a780a751 Mon Sep 17 00:00:00 2001
From: Subhendu Ghosh <sghosh@users.sourceforge.net>
Date: Mon, 10 Jun 2002 03:24:06 +0000
Subject: patch to stop NOQUEUE syslog messages - Karl Ewald

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@49 f882894a-f735-0410-b71e-b25c423dba1c

diff --git a/plugins/check_smtp.c b/plugins/check_smtp.c
index d57b784..2c03874 100644
--- a/plugins/check_smtp.c
+++ b/plugins/check_smtp.c
@@ -43,6 +43,13 @@
 
 #define SMTP_PORT	25
 #define SMTP_EXPECT     "220"
+/* sendmail will syslog a "NOQUEUE" error if session does not attempt
+ * to do something useful. This can be prevented by giving a command
+ * even if syntax is illegal (MAIL requires a FROM:<...> argument)
+ * You can disable sending DUMMYCMD by undefining SMTP_USE_DUMMYCMD.
+ */
+#define SMTP_DUMMYCMD  "MAIL\n"
+#define SMTP_USE_DUMMYCMD 1
 #define SMTP_QUIT	"QUIT\n"
 
 int process_arguments (int, char **);
@@ -131,6 +138,12 @@ main (int argc, char **argv)
 		}
 
 		/* close the connection */
+#ifdef SMTP_USE_DUMMYCMD
+               send(sd,SMTP_DUMMYCMD,strlen(SMTP_DUMMYCMD),0);
+               /* allow for response to DUMMYCMD to reach us */
+               recv(sd,buffer,MAX_INPUT_BUFFER-1,0);
+#endif /* SMTP_USE_DUMMYCMD */
+
 		send (sd, SMTP_QUIT, strlen (SMTP_QUIT), 0);
 		close (sd);
 	}
-- 
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