<\/b>\u00a0Multiple POP3 Outlook accounts for the same profile<\/b><\/li>\n<\/ol>\nThe high probability is you might have created multiple Outlook accounts for a single profile. For your convenience, you might have set your professional and personal outlook email account together which works at a single place but for different purposes. In several instances, it becomes a reason for a single email box getting created twice which further leads to receiving duplicate emails in Outlook<\/b>.<\/p>\n\n- <\/b> Incorrect Rules settings<\/b><\/li>\n<\/ol>\n
Incorrect Rules lead to creating duplicate email data in the Outlook mailbox. Rectify the issue by reconfiguring the appropriate Rules.<\/p>\n
\n- <\/b> Corrupted email received<\/b><\/li>\n<\/ol>\n
Another issue could be receiving multiple duplicate copies in outlook which further triggers a corrupted email issue. The problem has been generally been in Outlook 2010, 2013, and Outlook 2016. It may also occur in both, sent or receive folder. However, fixing it would require you to contact the IT administrator.<\/p>\n
\n- <\/b> Avoid syncing Outlook on many devices<\/b><\/li>\n<\/ol>\n
However, as a standard practice, many users try to access Outlook through multiple devices. That\u2019s not a problem though, but having multiple accounts like this may create a duplicate copy issue in outlook. Also, you need to fix it by removing the duplicate emails individually.<\/p>\n
\n- <\/b> Misconfigured Outlook settings<\/b><\/li>\n<\/ol>\n
You might have enabled the \u201cLeave a copy of the message on server\u201d settings in Outlook Account settings. You can also fix it by simply navigating the Accounts ad deactivate the settings.<\/p>\n
\n- <\/b> Importing PST files to the existing Outlook profile\u00a0<\/b><\/li>\n<\/ol>\n
Although PST files in Outlook are used to backup or export the data. While importing the files back from PST, the users sometimes get those files in the same Outlook profile, hence end up creating duplicates of the mailbox data.<\/p>\n