We are running Exchange 2003 server. We have about 5 mail enabled public folders that our users can public post emails that other users can look at or reference. Internally, within Outlook on our domain computers, we can send emails to the all of our mail enabled public folders and they display the emails in the folders just fine. However, we have one mail enabled public folder that we cannot sent emails to from external email accounts. All of the other mail enabled public folders post email from external (non domain) emails (like emails sent by our customers or my personal yahoo account) just fine, except one of them. I can find any differences in the settings of this particular public folder. When I send to this particular mail enabled folder from my yahoo account I get a "Delivery Status Notification: Failure" email returned to my yahoo account. Here are the contents of that email:
Arrival-Date: Tue, 8 Mar 2011 09:48:28 -0700
I researched status 5.2.1, and it mentioned a directory rights issue (or mail size, but that is certainly not the problem). The, I realized that when we set this particular folder up, management didn't want all of our users to be able to see the emails in here...somewhat sensitive...so I have the permissions on this folder set to allow only certain users to see the email. I don't understand the permissions very will under the Exchange System Manager, Public folders. What do I need to do in order to allow anyone to post emails to this directory, but only have certain users allowed to view them?