Hi,I have question regarding the postmaster, we want the external NDR's to come in the postmaster mailbox,ourexchange 2007 with HUB, Mailbox,CA are installed on one server and the Tranport edge on othere server, so I did create an mail box for postmaster then ran this cmdlet on the edge server.Set-TransportServerourserver -ExternalPostmasterAddress postmaster@ourdomain.com.but when I send an e-mail to a recipiant in our organization with mis spelled name, I do not get any ndr in the postmaster mailbox.I also find out that some one has run the same cmdlet on the hub transport server as wel.Any Idea why is this heppening?Thanks,ShahinShahin

ExternalPostmasterAddress is used for external NDRs, i.e. where the sender has an e-mail address that contains a domain that is not defined in the list of accepted domains for the Exchange2007 organization. For internal NDRs, use: Set-OrganizationConfig -MicrosoftExchangeRecipientReplyRecipient <Recipient Identity> For more information see http://technet.microsoft.com/en-us/library/bb400930.aspx Michel de Rooij, MCITP Ent.Msg | MCTS W2008, E2k7Conf | MCSE+Msg2k3 | MCSE+Inet2k3 | Prince2 Fnd | ITIL

Hi Michel,Thanks for the reply,we don't need the internal NDR to be send to postmater mailbox, we are intrested only about external NDR.Shahin

That's ok, but you did you test it by sending from a foreign domain to a unknown user? Also, did you run "Set-TransportServer .. -ExternalPostmasterAddress" on Hub as well as Edge servers ? Michel de Rooij, MCITP Ent.Msg | MCTS W2008, E2k7Conf | MCSE+Msg2k3 | MCSE+Inet2k3 | Prince2 Fnd | ITIL

Hi Michel,Thanks for the update,yes I did try to send the test e-mail from an external domain to someone inside our domain.we also run the Set-TransportServerourserver -ExternalPostmasterAddress postmaster@ourdomain.com.on both HUB server and Edge Servers.ShahinShahin

Hi,Are you able to see Postmaster email id when use Get-TransportServer command .Also confirm once you have created the postmaster mailbox, you must verify that the e-mail address that was assigned to the mailbox matches the e-mail address that you told Exchange to use for the postmaster.Anil

Hi,Any update?And hasthe edge serverbeen subscripted to the exchange organization?Did you create a postmaster recipient as Technet article said?More details to Manage the External Postmaster Address:http://technet.microsoft.com/en-us/library/bb430765.aspxFrank Wang

Hi Frank,Sorry for delay,Yes the edge server is been subscripted to the exchange organizationI did run the:Set-TransportServer Edge1 -ExternalPostmasterAddress postmaster@mydomain.comon the Edge Transport server.and also run:Set-TransportServer HUB1 -ExternalPostmasterAddress postmaster@contoso.comOn the Hub Transport server,I did run the: get-Transportserver on Hub transport server and get this:Name MessageTrackingLogEnabled ExternalPostmasterAddress---- ------------------------- -------------------------MAILSERV True postmaster@mydomain.comEdgeserver TrueAlso run the same cmdlet on the Edge server and get this:Name MessageTrackingLogEnabled ExternalPostmasterAddress---- ------------------------- -------------------------Securityserver True postmaster@mydomain.comShahinShahin