Index: modules/univention/s4connector/__init__.py
===================================================================
--- modules/univention/s4connector/__init__.py	(Revision 82505)
+++ modules/univention/s4connector/__init__.py	(Arbeitskopie)
@@ -748,10 +748,10 @@
 			return True  # file not found so there's nothing to sync
 		except (cPickle.UnpicklingError, EOFError) as e:
 			message = 'file emtpy' if isinstance(e, EOFError) else e.message
-			ud.debug(ud.LDAP, ud.WARN,
+			ud.debug(ud.LDAP, ud.ERROR,
 				'__sync_file_from_ucs: invalid pickle file {}: {}'.format(filename, message))
 			# ignore corrupted pickle file, but save as rejected to not try again
-			self._save_rejected_ucs(filename, 'unknown')
+			self._save_rejected_ucs(filename, 'ERROR: broken file')
 			return False
 
 		if dn == 'cn=Subschema':
@@ -1037,6 +1037,8 @@
 
 		if rejected:
 			for filename, dn in rejected:
+				if dn in ('ERROR: broken file',):
+					continue
 				ud.debug(ud.LDAP, ud.PROCESS, 'sync from ucs:   Resync rejected file: %s' % (filename))
 				try:
 					if self.__sync_file_from_ucs(filename, append_error=' rejected'):
@@ -1098,10 +1100,10 @@
 						continue  # file not found so there's nothing to sync
 					except (cPickle.UnpicklingError, EOFError) as e:
 						message = 'file emtpy' if isinstance(e, EOFError) else e.message
-						ud.debug(ud.LDAP, ud.WARN,
+						ud.debug(ud.LDAP, ud.ERROR,
 							'poll_ucs: invalid pickle file {}: {}'.format(filename, message))
 						# ignore corrupted pickle file, but save as rejected to not try again
-						self._save_rejected_ucs(filename, 'unknown')
+						self._save_rejected_ucs(filename, 'ERROR: broken file')
 						continue
 
 					for i in [0, 1]:  # do it twice if the LDAP connection was closed