Duplicate messages appear or messages do not disappear when deleted
Topic T1012
Applies to All NEO products
Problem Duplicate messages appear in NEO, or messages do not disappear when deleted. In some cases the only way to remove them is to do a NEO Full Synchronization.
Resolution Case 1: NEO 2.5 users using Outlook 2003 running in Cached Exchange Mode with Exchange
Cached Exchange Mode support, new to Outlook 2003 with Exchange Server, has not been implemented in NEO 2.5. Support for Cached Exchange Mode is implemented in NEO 3 and NEO Pro 3.
If you are running in Cached Exchange Mode in NEO 2.5, we recommend you upgrade to version 3 or disable it if you wish to continue using NEO. To check to see if you are running in Cached Exchange Mode and to disable it:
In Outlook, click Tools menu | E-mail Accounts
Select 'View or change existing e-mail accounts' and click Next
Select your Exchange Account and click Change
Uncheck the checkbox, Use Cached Exchange Mode
Case 2: Outlook version prior to 2003 or not running Cached Exchange Mode
Ensure that you are not creating duplicate messages using Outlook rules. For example, you may have a rule that copies a message to another folder. In Outlook it won't appear as a duplicate because only one folder is displayed at one time. However, in NEO all messages are shown together making real duplicate messages appear as errors.
Ensure that you have a "Stop processing more rules" as the last command of your rules. Not having this command can cause duplicate messages to occur.
