Software: Office 2010, 2013 & 2016 | Last modified on 2018-06-18
Solutions for troubleshooting the issue that every received email in Outlook is received twice.
[Solution 1] Updating Microsoft Office
- Start any Office application, such as Outlook or Word
- Click File in the top-left corner, and then click Office Account or Account in the left sidebar
- In the right-side window click on Update Options
- If possible, click Update Now to update to the latest version of Office
- Test to see if the issue still occurs. If this is the case continue with solution 2
[Solution 2] Changing the root folder path to IMAP
- Open File and click Account Settings
- Select 'Account Settings...' in the drop-down menu
- Select the account that is experiencing the issue and click 'Change...'
- In the bottom right corner click 'More Settings...'
- Click the Advanced tab
- Change the Root folder path: to Inbox with a capital i
- Test to see if the issue still occurs. If this is the case continue with solution 2
[Solution 3] Disabling the antivirus plugin in Outlook
- Click File
- Click Options in the left side menu
- Click Add-Ins in the side menu
- Make sure the drop-down menu next to Manage is set to 'COM Add-ins' and click 'Go...'
- Uncheck the checkbox next to the antivirus add-in and close the menu to test the issue once again
- If the problem still occurs you can try to uncheck every COM Add-in in the list.