Anti-virus software can interrupt the Outlook process of sending or receiving and it will start over.Incorrect account settings are a common cause of Outlook duplicates.The same email account is set up more than once and old emails are resynchronized.Sending and receiving too often can cause duplicate emails.Different Outlook rules apply to the same message and it may be copied to different folders.Synchronization errors can result in getting double emails in Outlook.Slow Internet performance or Internet connection failures.Let's see what causes duplicate emails in your Outlook Inbox and Outbox folders.Ĭommon reasons for duplicate emails in different Outlook folders: To get rid of the problem, you need to find the cause and fix it. Try For Free Why Outlook duplicates emails This article lists various ways to remove duplicate Outlook emails, including professional solutions to check the number and location of duplicates, and automatically find and safely delete duplicate emails in Outlook. It takes more time and disk space to back up or transfer your mailbox.A high number of duplicates slow down the Outlook performance.The large size of the Outlook PST file can lead to its corruption and cause Outlook to freeze.Duplicate emails take up extra space in the data file, disks, and server.It's easy to make a mistake and repeatedly reply to the same message, putting yourself in an awkward situation. Duplicate emails cause problems and confusion with business correspondence.Search time for messages increases and search results are difficult to understand because emails are duplicated in different folders.Duplicate emails are distracting and reduce productivity.But if you suddenly find numerous duplicates, or emails are duplicating in Outlook regularly, this creates serious problems: How to find duplicate emails in different Outlook folders?Ī few duplicate messages won't cause serious trouble.How to stop duplicate emails in Outlook from copying?.

Why is Outlook sending duplicate emails?.

Why is Outlook downloading duplicate emails?.

Removing or moving duplicate Outlook messages.

Finding and marking duplicate messages in Outlook.

Detecting and determining the number of duplicate email in Outlook folders.Automatic duplicate email finder and remover for Outlook.Deduplicate Outlook emails using the Import / Export option.Outlook Clean Up tool to remove duplicate emails.Removing duplicate Outlook emails in Preview mode.Clean up Outlook duplicate emails manually.How to find and remove duplicate emails in Outlook.One such problem is the repeated emails in the Outlook mailbox that occur due to errors or various failures. But Outlook users are not immune to operational problems. Microsoft Outlook is a popular organizer and a handy email application with many additional functions.

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