Hello I have a Win2008 ent server with E2007sp1 ent I have mail enabled public folders that can get email from internal senders but if sent from internet users it never arrives This is the ndr I get from yahoo when trying to send to 1 of the public folders <testpf@xxxxg.net>:Sorry, I wasn't able to establish an SMTP connection. (#4.4.1)I'm not going to try again; this message has been in the queue too long

Is this a new setup where you never had any other version of Exchange? How many exchange servers do you have between internet and server where public folder resides? What are current permissions on public folders?

Its a new setup in a new domain No ther exchange servers The folders have default>author anonymous>contributor

the ndr that comes back #550 4.4.7 QUEUE.Expired; message expired ##

It seems the message gets to the queue on your exchange but does not get delivered to PF due to permissions or corruption on folder. Corruption is unlikely since internal mail works to PF. Can you please reset permissions on folder and see if it helps? Add-PublicFolderClientPermission -Identity "\My Public Folder" -User Anonymous -AccessRights CreateItems change "\My Public Folder" to correct PF path. Thanks.

Few more things you can try: Check the email address stamped on the PF object. Make sure it is correct and there are no errors in spalling of email address. Also if possible, disable mail on the PF and the reenable for mail. Last, if you are comfortable with ADSIEdit, you can try the following: ADSIEdit: Configuration -> Services -> Microsoft Exchange -> Your org -> Administrative groups -> Your AG -> Folder hierarchies->Public Folders Make sure your public folder shows up in this location. Please reply with results at your convenience.

Hi Bhargav! I disabled the mail and re mail enabled and now all folders are getting email!!!!!! Thanks to all for the help!

Good to know!