Hi, I need to make certain public folders be allowed to receive NDR's. We have departments which send to groups of people on an AD Hoc basis and we need to know when the e-mail address is incorrect etc. We have a whole bunch of Event ID: 2028 saying the NDR has been deleted, I need to know if there is a way to change this behaviour? Thanks, Terry

You ca create a transport rule for all NDR message route to Public folder Email address. Please have a look of below posts. Using Exchange 2007 Transport Rules to Protect the First Entry in the Address Book: http://www.simple-talk.com/sysadmin/exchange/using-exchange-2007-transport-rules-to-protect-the-first-entry-in-the-address-book/ http://technet.microsoft.com/en-us/library/bb123506.aspx - Associating a DSN Message with a Transport Rule http://technet.microsoft.com/en-us/library/aa998878.aspx - New-SystemMessageAnil

Anil, I read over these technet articles but don't really understand how to create a transport rule to allow NDR messages to public folders? Is there an example that I can use somewhere? Regards, Terry

As far as I was aware, blocking of NDRs to public folders hasn't changed with the later versions. I recall that someone said they wrote a custom transport sink to allow it, and I am sure there is at least one third party application that does the same thing. However setting up a mailbox is the better option. Simon.Simon Butler, Exchange MVP Blog | Exchange Resources

If I was to forward the NDRs which are destined to the public folder, to a Distribution Group or a Mailbox, how is this possible?

NDRs are system messages and are special. As far as I am aware you can't do anything with them natively. Therefore you would have to change the From address to be the mailbox rather than a public folder. Simon.Simon Butler, Exchange MVP Blog | Exchange Resources

Sembee’s right. The behavior is by design from exchange 2000 to latest exchange 2010 The only workaround I have tested is to use “On behalf of” instead of “Send As” For example: There’re user A, user B and a public folder called PF1, and user A needs to send mail to user B as PF1 We can put user A’s distinguishedName into the “publicDelegates” attribute of PF1 Then, user A will receive the NDRJames Luo TechNet Subscriber Support (http://technet.microsoft.com/en-us/subscriptions/ms788697.aspx) If you have any feedback on our support, please contact tngfb@microsoft.com

Any links to how to do this?

Procedure: 1. Locate user A’s distinguishedName Get-User “User A” | Fl DistinguishedName 2. Launch ADSI Editor, go to “CN=Microsoft Exchange System Objects”, right-click the PF1 object, and then go to “Properties” Notes: PF1 must be mail-enabled 3. In the “Attribute Editor” tab, locate “publicDelegates” attribute, and then copy user A’s DistinguishedName into itJames Luo TechNet Subscriber Support (http://technet.microsoft.com/en-us/subscriptions/ms788697.aspx) If you have any feedback on our support, please contact tngfb@microsoft.com