There's usually more detailed information in an NDR that follows the line you quoted. Did you mail-enable this PF and enable Contributor rights to Anonymous? Carl From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Vineet Tripathi Sent: Tuesday, March 03, 2009 8:09 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Public folder problem Hi all, I have created a public folder on exchange 2003. When i send mail from external domain to this folder I am getting the error below:- The message reached the recipient's e-mail system, but delivery was refused. Attempt to resend the message. If it still fails, contact your system administrator Any idea related to this....