no greylisting

exim.conf

@@ -37,9 +37,9 @@ acl_rcpt:
   deny  message = Access denied (2)
         spf = fail
 
-  # Greylisting
+  ## NO -  Greylisting
-  defer message = Try again later
+  #defer message = Try again later
-        !seen = 72h / key=${sender_address}_${local_part}@${domain}
+  #      !seen = 72h / key=${sender_address}_${local_part}@${domain}
 
   # Rate limit
   deny  message = Access denied (3)