Exchange 2007 (standard) RTM Running on a SBS 2008 server Using the "How to Mail-Enable Public Folders" instructions ( http://technet.microsoft.com/en-us/library/aa997560(EXCHG.80).aspx ) I am able to send emails to an email address, it dumps into the Public Folder...but only internal emails work. Sending from an external email address, the emails never arrive. I have followed the instructions for the GUI and Shell, no difference. I have verified "anonymous user is set to contributor" (permissions on the public folder). suggestions? thx, Ben Houston, TX

Does the sender receive an NDR? If not, can you track the message at your Internet facing mail server or internal mail queues to see where it may be blocked?TBrennan

Check the permissions on the public folder itself, the Anonymous group must have at least Contributor rights or external users will not be able to add content.TBrennan

SBS 2008 uses by default domain_name.local for the internal Windows and DNS domain. In the Public Folder Management Console, check the properties for your mail-enabled public folders and click on the tab E-Mail Addresses. Perhaps you only have e-mail addresses there that are not routable, for instance only public-1@domain_name.local. This would work internally, but not from the Internet. If this is the case, add a valid SMTP address to the public folders in question. Another issue of course could be that your are receiving external mail through POP3 accounts at your ISP and are downloading them with the SBS 2008 POP3 connector. In that case, I believe, you would need to create a mailbox, download to it and set up forwarding to the public folder.MCTS: Messaging | MCSE: S+M

Hi, Is there any SPAM gateway? Because the mail-enabled public folder does not have an AD account and an LDAP entry, thus SPAM may drop all external emails going to that address since it assume it is a false address and therefore spam! If the problem still exists, you could also go to “SBS forum” which would be the most relevant forum for your question. Because SBS is much different from general Exchange. SBS Forum http://social.technet.microsoft.com/Forums/en-US/smallbusinessserver/threads Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.