We have Exchange 2003 with all latest updates in Server 2003 domain. About a week ago our Exchange server started randomly sending out some old emails. Maybe 3-4 times a week. Very random and no pattern. We had also a situation when some email didn't reach the recipient causing some communication confusion in the company. The Exchange has been running OK for the past 3-4 years. Does this ever happen to anyone else and what could be reason and solution ?