Hello all, Two issues since upgrading to Exchange 2003 and running in Mixed Mode with Exchange 5.5... 1. I am unable to send any e-mail to Public Folders since they have been re-homed to the Exchange 2003 server. When sending to the Public Folders, I get the following bounce back - This is an automatically generated Delivery Status Notification. Delivery to the following recipients failed. EMailAddress@xxxxxxxxxxxxxxxxxxx Final-Recipient: rfc822;EMailAddress@xxxxxxxxxxxxxxxxxxx Action: failed Status: 5.2.1 In looking at MS KB284204, the SID for the Public Folder is most likely the cause of the error (Status 5.2.1). Where can I check the status of the SID for Public Folders? 2. Mailbox accounts that are setup to automatically forward a copy of all e-mails to another recipient produce duplicate e-mails when sending outside of our network. In other words, on MailboxA, I configure the account to send a copy of all e-mails to a 'Contact' and also keep a copy of the e-mail on the Exchange Server. The mail flows fine to both the MailboxA and to the external Contact address, but the Contact is receiving two copies of every e-mail... Thanks for any help, Chris