Hi all, I have a mixed Exchange 5.5 /2000 sigle site. I added another E2K server the other day all went fine. No errors noted in event viewer. I moved a test account over to it. Now when sending an email to this account I get an NDR and an event 290 is entered in the 5.5 Server. Any help would be appreciated. Event 290: Event Type: Warning Event Source: MSExchangeMTA Event Category: X.400 Service Event ID: 290 Date: 3/11/2004 Time: 10:00:56 AM User: N/A Computer: PLATO Description: A non-delivery report (reason code directory-operation-unsuccessful and diagnostic code Omit any diagnostic code) is being generated for message C=us;A= ;P=national corpora;L=PLATO0403111500GHAGH8Z6. It was originally destined for DN:/o=NATIONAL CORPORATE RESEARCH/ou=NYCITY/cn=RECIPIENTS/cn=KUMAR§ (recipient number 3), and was to be redirected to . [MTA DISP:RESULT 18 136] (12) NDR: Your message did not reach some or all of the intended recipients. Subject: RE: Ucc Profile Sent: 3/11/2004 9:47 AM The following recipient(s) could not be reached: Kumar Munroe on 3/11/2004 9:47 AM A required directory operation was unsuccessful The MTS-ID of the original message is: c=US;a= ;p=National Corpora;l=PLATO-040311144704Z-7638 MSEXCH:MSExchangeMTA:NYCITY:PLATO