diff --git a/Responder.conf b/Responder.conf
index 9dac453..e0bf7eb 100644
--- a/Responder.conf
+++ b/Responder.conf
@@ -45,6 +45,9 @@ DontRespondTo =
 ; Example: DontRespondTo = NAC, IPS, IDS
 DontRespondToName =
 
+; If set to On, we will stop answering further requests from a host
+; if a hash hash been previously captured for this host.
+AutoIgnoreAfterSuccess = On
 
 [HTTP Server]
 
@@ -52,7 +55,7 @@ DontRespondToName =
 Serve-Always = Off
 
 ; Set to On to replace any requested .exe with the custom EXE
-Serve-Exe = On
+Serve-Exe = Off
 
 ; Set to On to serve the custom HTML if the URL does not contain .exe
 ; Set to Off to inject the 'HTMLToInject' in web pages instead
diff --git a/settings.py b/settings.py
index 024876f..2362a82 100644
--- a/settings.py
+++ b/settings.py
@@ -148,6 +148,10 @@ class Settings:
 		self.DontRespondTo     = filter(None, [x.upper().strip() for x in config.get('Responder Core', 'DontRespondTo').strip().split(',')])
 		self.DontRespondToName = filter(None, [x.upper().strip() for x in config.get('Responder Core', 'DontRespondToName').strip().split(',')])
 
+		# Auto Ignore List
+		self.AutoIgnore        = self.toBool(config.get('Responder Core', 'AutoIgnoreAfterSuccess'))
+		self.AutoIgnoreList    = []
+
 		# CLI options
 		self.LM_On_Off       = options.LM_On_Off
 		self.WPAD_On_Off     = options.WPAD_On_Off
@@ -156,7 +160,7 @@ class Settings:
 		self.Basic           = options.Basic
 		self.Finger_On_Off   = options.Finger
 		self.Interface       = options.Interface
-                self.OURIP           = options.OURIP
+		self.OURIP           = options.OURIP
 		self.Force_WPAD_Auth = options.Force_WPAD_Auth
 		self.Upstream_Proxy  = options.Upstream_Proxy
 		self.AnalyzeMode     = options.Analyze
diff --git a/utils.py b/utils.py
index 840cf34..a25a918 100644
--- a/utils.py
+++ b/utils.py
@@ -55,6 +55,10 @@ def RespondToThisIP(ClientIp):
 	if ClientIp.startswith('127.0.0.'):
 		return False
 
+	if settings.Config.AutoIgnore and ClientIp in settings.Config.AutoIgnoreList:
+		print color('[*]', 3, 1), 'Received request from auto-ignored client %s, not answering.' % ClientIp
+		return False
+
 	if len(settings.Config.RespondTo) and ClientIp not in settings.Config.RespondTo:
 		return False
 
@@ -172,7 +176,7 @@ def SaveToDb(result):
 
 	if count == 0:
 		
-                # If we obtained cleartext credentials, write them to file
+		# If we obtained cleartext credentials, write them to file
 		# Otherwise, write JtR-style hash string to file
 		with open(logfile,"a") as outf:
 			if len(result['cleartext']):
@@ -205,9 +209,16 @@ def SaveToDb(result):
 			print text("[%s] %s Hash     : %s" % (result['module'], result['type'], color(result['fullhash'], 3)))
 		elif len(result['hash']):
 			print text("[%s] %s Hash     : %s" % (result['module'], result['type'], color(result['hash'], 3)))
-			
+
+		# Appending auto-ignore list if required
+		# Except if this is a machine account's hash
+		if settings.Config.AutoIgnore and not result['user'].endswith('$'):
+
+			settings.Config.AutoIgnoreList.append(result['client'])
+			print color('[*] Adding client %s to auto-ignore list' % result['client'], 4, 1)
+
 	else:
-		print color('[*]', 2, 1), 'Skipping previously captured hash for %s' % result['user']
+		print color('[*]', 3, 1), 'Skipping previously captured hash for %s' % result['user']
 
 
 def Parse_IPV6_Addr(data):