diff --git a/app/core/processor.py b/app/core/processor.py
index 7e4e31a..fa39436 100644
--- a/app/core/processor.py
+++ b/app/core/processor.py
@@ -26,9 +26,10 @@ queue = Queue()
 proc = None
 env = None
 
-# store client IP in memory until classification 
+# store client IP in memory until classification
 client_ips = {}
 
+
 class Processor(Thread):
 
     def stop(self):
@@ -163,15 +164,16 @@ def reply_comment_email(data):
         return
 
     # safe logic: no answer or unknown answer is a go for publishing
-    if message[:2].upper() in ('NO','SP'):
+    if message[:2].upper() in ('NO', 'SP'):
 
-        # put a log to help fail2ban 
-        if message[:2].upper() == 'SP': # SPAM
+        # put a log to help fail2ban
+        if message[:2].upper() == 'SP':  # SPAM
             if comment_id in client_ips:
-                logger.info('SPAM comment from %s: %d' % (client_ips[comment_id], comment_id))
+                logger.info('SPAM comment from %s: %d' %
+                            (client_ips[comment_id], comment_id))
             else:
                 logger.info('cannot identify SPAM source: %d' % comment_id)
-            
+
         # forget client IP
         if comment_id in client_ips:
             del client_ips[comment_id]
@@ -210,8 +212,6 @@ def reply_comment_email(data):
             notify_subscribed_readers(
                 comment.site.token, comment.site.url, comment.url)
 
-        # system quit
-        system_quit()
 
 def late_reject_comment(id):
 
@@ -463,10 +463,6 @@ def get_processor():
     return proc
 
 
-def system_quit():
-    sys.exit(0)
-
-
 def start(template_dir):
     global proc, env