Hello Friends, I have an active-active exchange 2003 cluster. In which I am using Macafee Groupshield as antivirus. But for a long time below two errors are comming up in application evnet log. Can anybody help me in this regard. Thanks, Brajesh Event Type: Warning Event Source: MSExchangeIS Event Category: General Event ID: 9548 Date: 12/15/2005 Time: 10:50:35 AM User: N/A Computer: ZENMAILNODE1 Description: Disabled user /O=ICIL/OU=IND37/CN=RECIPIENTS/CN=S.GAUR does not have a master account SID. Please use Active Directory MMC to set an active account as this user's master account. For more information, click http://www.microsoft.com/contentredirect.asp. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. __________________________________ Event Type: Error Event Source: MSExchangeIS Event Category: Content Engine Event ID: 12002 Date: 12/14/2005 Time: 6:06:45 PM User: N/A Computer: ZENMAILNODE1 Description: Error 8004010F-80000000 occurred while processing message <> from 'ITSS CATE ADMIN'. For more information, click http://www.microsoft.com/contentredirect.asp. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Brajesh Ranjan Panda Mobile : +91-9876108283, 9818725533 Mail: brpanda23@xxxxxxxxx "Kafi hai sapne dil ko behlane ke liye, Mohabbat karlo dil ko dukhane ke liye. Chahe bhale pade gam se vasta, Ek dost rakhna sab gamo ko bhulane ke liye." " Feelings of lonneliness, moments of caring, small small sharing, stupid fights, shoulders to cry, to be together in pain, creates a miracle called FRIENDSHIP & seriousnes creates RELATIONSHIP. " --------------------------------- Yahoo! Shopping Find Great Deals on Holiday Gifts at Yahoo! Shopping