You can follow the same process of elimination as documented in the previous paragraph. If all else fails, you may want to try to uninstall and re-install your device’s Microsoft Outlook sync software.įinally, if you are using any Microsoft Outlook addins it’s possible that one or more of your addins may be causing Outlook duplicate items. It’s highly likely that other users have experience the same issue and the solution may be documented.

If not, you may also want to check the device manufacturer’s online support knowledge base (if one is offered). 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. 3.ĝelete one or more of your Outlook email accounts, and re-add it.Again, if this is the source of the Outlook email duplication, your Outlook items will no longer get duplicated. Temporarily disable the “Leave a copy of messages on the server” setting in Outlook, if you are currently using it for one or more specified email accounts.If one or more of your rules were causing the duplication, your Outlook items will no longer get duplicated. Temporarily disable or remove your rules.Here are a couple of things you may want to try in order to prevent this from happening over and over: If you’re Outlook emails are continuously duplicating then it is highly likely that you have a rule or setting within Outlook that is causing emails to become duplicated. Syncing Outlook with other applications and/or devices (Phones, PDAs, ect.).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.

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