

If you find that your Outlook duplicate issue is caused by the synchronization of a device the first thing you’ll want to do is check to see if the device manufacturer has released an update of their Outlook synchronization software.

Again, using the process of elimination, temporarily disable the device(s) that synchronize with Microsoft Outlook and see if the problem persists. If you have other Outlook items such as Contacts, Appointments, and/or Tasks that are continuously duplicating it is highly likely to be due to a PDA device synchronizing with Microsoft Outlook. We’ve read reports that the settings for an email account in Outlook can become corrupt, and the act of removing and re-adding them can correct the associated issues with an email account’s corruption.

Outlook’s email account and/or rules settings.There are many things that can cause Outlook items to become duplicated, but two of the most common causes/sources are: Prevent and Remove Outlook Duplicate Itemsĭuplicate items are a common issue that most Outlook users will encounter from time to time.
