I am using a Exchange 2003 sp2 std server running on W2K3 R2 sp2 and I am running outlook 2007 on my desktop, however recently I had noticed a massive increase in my sync conflicts folder within my mailbox and when I checked this folder I noticed e-mails from 12 months old which I had purged from my mailbox allong time ago (purged from deleted folder and recover delete items. I am confused as to how these very old items re-appeared. The only change that I can can recall is that I setup a new Google Android phone and synchronised it my mail exchange mailbox. Any ideas or can anyone point me to an article that explains sycn conflicts.

If you are using cached mode, Sync folder is used to log any unusual failures or conflicts. Sync Issues Contains all of the synchronization logs. In previous releases of Microsoft Outlook, these logs were stored in the Deleted Items folder. This folder is helpful if Outlook is having trouble synchronizing — for example, there is an item that you see in Outlook Web Access, but not in Outlook — or you are not getting new mail in some folders when using Cached Exchange Mode. The information in this folder may help your organization's support team or Microsoft Exchange server administrator determine what is wrong. The contents of the Sync Issues folder are not copied to your server, and you cannot view the items in the Sync Issues folder from any other computer. Conflicts Contains all the multiple copies of conflicting items in your mailbox. An InfoBar (InfoBar: Banner near the top of an open e-mail message, appointment, contact, or task. Tells you if a message has been replied to or forwarded, along with the online status of a contact who is using Instant Messaging, and so on.) at the top of the original item advises you that a conflict for this item exists. The conflicting item is stored in the Conflicts folder. Clicking the InfoBar will bring up a list of conflicting items and allow you to resolve the conflict by determining which item you want to keep. If you have made changes to an item, but are not seeing the updated item in your Navigation Pane folders, check the Conflicts folder. It is possible that your changes caused a conflict with the original item, and the changes will exist in the Conflicts folder. Local Failures Contains all items that could not be sent to your server. If you have made changes to items while working offline, and then notice that your changes are not appearing in another Outlook client or Outlook Web Access, you should check this folder. The local changes may be permanently stuck in your Local Failures folder. An InfoBar appears at the top of any item that has another copy of the item stored in the Local Failures folder. Clicking the InfoBar opens the Local Failures folder for you in a separate window. You can only see these items when you are offline and you cannot view them from any other computer. Server Failures Contains items that Outlook failed to synchronize from the Exchange server. When Outlook cannot synchronize the item from the server, it moves it from its original folder location into the Server Failures folder. The contents of this folder are available only when you have a connection to your server. If you are missing a message that has been sent to you, and you have verified with the sender that the message was sent, check this folder. Items normally appear in this folder only when there are failures in synchronizing server items with an Offline Folder file (.ost) (Offline Folder file: The file on your hard disk that contains offline folders. The offline folder file has an .ost extension. You can create it automatically when you set up Outlook or when you first make a folder available offline.) , which is used when you work offline or use Cached Exchange Mode. An InfoBar appears at the top of any item that has another copy of the item stored in the Server Failures folder. Clicking the InfoBar will open the Server Failures folder for you in a separate window. Note If you use the Offline Folder file (.ost) (Offline Folder file: The file on your hard disk that contains offline folders. The offline folder file has an .ost extension. You can create it automatically when you set up Outlook or when you first make a folder available offline.) Integrity Check tool (Scanost.exe) to fix synchronization errors, the scan logs that are generated can be found in Deleted Items . Good Luck Shaba

Resources: Cached Exchange Mode conflict handling in Outlook 2007James Luo TechNet Subscriber Support (http://technet.microsoft.com/en-us/subscriptions/ms788697.aspx) If you have any feedback on our support, please contact tngfb@microsoft.com