However I have found the root cause .. we have some servers which is part of different domain (.abc.com) and MLS is in (xyz.com) domain .MLS cant resolve the servers which is part of abc.com. Since UIM alarms are passed via MLS ,this is happening and event model is created in MLS.. We cant enable name resolution or lookup between these domains , as a workaround I have added (abc.com) servers in MLS etc entry hosts file.
How Spectrum - UIM integration will overcome this .