Hello, I followed the following Microsoft article (http://technet.microsoft.com/en-us/library/bb400930(EXCHG.80).aspx) in order to get copies of NDRs to postmaster's mailbox, BUT only are copied some NDRs. The following NDRs are copied: 1) NDRs to external users (for example when someone external send an email to an unknown internal user) 2) NDRs to internal users (for example when someone internal send an email to an unknown internal user) The next one are not copied: 3) NDRs to internal users (for example when someone internal send an email to an unknown external user). This behavier is correct? How can I get the third kind of NDRs copied? ThanksCristian L Ruiz

Thanks for you reply. I do not have an edge server, only a multirole server with CAS, HT, and Mailbox Server all in one, under an ISA Server. ThanksCristian L Ruiz

Hi, Then please try to run the cmdlet from your transport server an then post the result here. Xiu Zhang TechNet Community Support