Hi, Whenever I create new distribution groups or contacts in exchange 2007 I have to go into ADSI Edit and manually update the legacyexchangedn before I can use them otherwise I recieve #550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found ## Any ideas why this happens and what I can change to prevent this happening in future? Thanks Alan

HI Alan, Error msg "550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found ##" occure same object name assign to any object before and creating duplicate onem, You need to check this in your case here. You can also change X.500 address when create mail enable object by go to the E-Mail Addresses property page, and add a new custom address. http://www.simple-talk.com/sysadmin/exchange/exchange-e-mail-addresses-and-the-outlook-address-cache/ Anil

When you say you have to manually update the legacyExchangeDn field, do you mean it doesn't exist, or its formatted in such a way that you need to tweak it? Also are you mail-enabling/creating the objects through an Exchange Management Shell or the Exchange Management Console? Lastly are you adding the objects in the same site that the Exchange server that is generating the NDRs is in?

Hi I create the object through the EMC and it only seems to happen for Contacts and Distribution Groups. After creating the object the legachexchangedn field is blank so I have to manually put an entry in there. Yes the exchange server is in the same site. Alan

Please reproduce the issue with -verbose switch via PowerShell, and then check the output and application log Possible cause: New LegacyExchangeDN was not populated on new objects because these objects were not processed by System Policy (Mail-Enabled Recipient Policy). New recipient objects were skipped during the Recipient Update Services’ call to process new recipient Resolution: Correct the filter in the “Mail-Enabled Recipient Policy” a. Launch ADSI Editor b. Expand to “Configuration” container->”CN=Services”->”CN=Microsoft Exchange”->”CN=OrganizationName”->”CN=System Policies” c. In the middle-pane, go to “Properties” of “CN=Mail Enable Recipient” entry d. In the “Attribute Editor” tab, open the “purportedSearch” attribute, and verify the value exactly same as below: (|(&(objectCategory=person)(objectClass=user)(mailnickname=*)(targetAddress=*))(&(objectCategory=person)(objectClass=contact)(mailnickname=*)(targetAddress=*))(&(objectCategory=group)(mailnickname=*))(&(objectCategory=publicFolder)(mailnickname=*))) e. Please also use the same procedure to verify the “purportedSearch” attribute of “CN=Mailbox Enable User” entry (|(&(objectCategory=person)(objectClass=user)(mailnickname=*)(msExchHomeServerName=*))(&(objectCategory=person)(objectClass=user)(mailnickname=*)(homeMdb=*))(&(objectCategory=person)(objectClass=user)(mailnickname=*)(homeMta=*))) Resources: Understanding Recipient Resolution Refer same thread from where i have copied above content:: http://social.technet.microsoft.com/Forums/en-US/exchangesvrmigration/thread/77e35461-a5bf-45d2-824a-ccf5d92af602/ Anil

Please reproduce the issue with -verbose switch via PowerShell, and then check the output and application log Possible cause: New LegacyExchangeDN was not populated on new objects because these objects were not processed by System Policy (Mail-Enabled Recipient Policy). New recipient objects were skipped during the Recipient Update Services’ call to process new recipient Resolution: Correct the filter in the “Mail-Enabled Recipient Policy” a. Launch ADSI Editor b. Expand to “Configuration” container->”CN=Services”->”CN=Microsoft Exchange”->”CN=OrganizationName”->”CN=System Policies” c. In the middle-pane, go to “Properties” of “CN=Mail Enable Recipient” entry d. In the “Attribute Editor” tab, open the “purportedSearch” attribute, and verify the value exactly same as below: (|(&(objectCategory=person)(objectClass=user)(mailnickname=*)(targetAddress=*))(&(objectCategory=person)(objectClass=contact)(mailnickname=*)(targetAddress=*))(&(objectCategory=group)(mailnickname=*))(&(objectCategory=publicFolder)(mailnickname=*))) e. Please also use the same procedure to verify the “purportedSearch” attribute of “CN=Mailbox Enable User” entry (|(&(objectCategory=person)(objectClass=user)(mailnickname=*)(msExchHomeServerName=*))(&(objectCategory=person)(objectClass=user)(mailnickname=*)(homeMdb=*))(&(objectCategory=person)(objectClass=user)(mailnickname=*)(homeMta=*))) Resources: Understanding Recipient Resolution Refer same thread from where i have copied above content:: http://social.technet.microsoft.com/Forums/en-US/exchangesvrmigration/thread/77e35461-a5bf-45d2-824a-ccf5d92af602/ Anil Hi Anil, I changed the value for mail enable recipient and it worked a treat. Thank you so much for your help Alan