diff --git a/Milter/greylist.py b/Milter/greylist.py
index 5f983da..1a7dcd1 100644
--- a/Milter/greylist.py
+++ b/Milter/greylist.py
@@ -41,13 +41,15 @@ class Greylist(object):
     self.dbp = shelve.open(dbname,'c',protocol=2)
     self.lock = thread.allocate_lock()
 
-  def export_csv(self,fp):
+  def export_csv(self,fp,timeinc=0):
     "Export records to csv."
     import csv
     dbp = self.dbp
     w = csv.writer(fp)
+    now = time.time() + timeinc
     for key, r in dbp.iteritems():
-      ip,sender,recipient = key.split(':')
+      if now > r.lastseen + self.greylist_retain: continue
+      ip,sender,recipient = key.rsplit(':',2)
       w.writerow([ip,sender,recipient,r.firstseen,r.lastseen,r.cnt,r.umis])
 
   def clean(self,timeinc=0):
@@ -112,7 +114,7 @@ class Greylist(object):
 
 if __name__ == '__main__':
   import sys
-  g = Greylist(sys.argv[1])
+  g = Greylist(sys.argv[1],5,24,36)
   try:
     g.export_csv(sys.stdout)
   finally: g.close()