These are some of the causes due to which duplicate emails occur. Hence check your anti-virus setting before installing MS Outlook. While setting up your email account, you might have put in some wrong parameters and hence same emails are showing up all over again.ДЄntivirus could also result in duplication of emails.

If the emails are coming too fastly and cannot be synchronized then it will result in a number of duplicate emails.Д¬onfiguring the same email, again and again, will result in multiple synchronizations due to which there will be duplicity of emails.

This, in turn, results in email duplication. Please click the OK button to close it.It happens most of the time that the rules are incorrectly configured. Then a dialog box comes out and shows you how many duplicate emails are processed. (3) If you selected Add categories (including reserved)В from the Ways to handle duplicate emails drop-down list, please check one or more color categories as you need in the Color Categories dialog, and click the OK button.ДЁ. (2) If you selected Move duplicate sub-items or Move all duplicate emails from the Ways to handle duplicate emails drop-down list, please specify a destination folder in the popping out Please select folders dialog, and click the OK button. (1) If you selected Delete (Move to the Deleted Items folder) from the Ways to handle duplicate emails drop-down list, it will delete the duplicate emails at once.

Add categories (including reserved): This option will add one or multiple color categories to all duplicate emails of all duplicate groups, including the reserved ones.Д§.Then select a folder or specify color categories based on the handling way you specified in last step.

Move all duplicates (including reserved): This option will move all duplicate emails of all duplicate groups, including the reserved ones to the specified mail folder.

Move duplicates (except reserved): This option will move all duplicate emails except the reserved one in every duplicate group to the specified mail folder.

Delete (move to the Deleted Items folder): This option will delete all duplicate emails except the reserved one in every duplicate group.

Still in the Duplicate Email - Step 5 (of 5) wizard, pick up a handling way from the Ways to handle duplicate emails drop-down list, and then click the Apply now button left to the Close button, see screenshot: Then go ahead to click the Reselect the duplicate criteria button in the Duplicate Emails - Step 5 (of 5) wizard, next in the Duplicate email - reselect fields to filter duplicate emails dialog adjust the filter criteria and click the Start filtering button.

It can find thousands of items in one instance, and you have the ability to manually check everything that has been detected, in which you can cancel or delete or move the item. Click the OK button to adjust the filter criteria. Deduper - Outlook duplicate remover does exactly as the name suggests, it searches and removes all duplicates whether thats appointments, contacts, notes, tasks or emails. If no duplicate emails are found, it will pop out a dialog as below screenshot shown. Double clicking an email in the Result list box will open this email in the Message window. If you have processed (category, move, or delete) the duplicate emails separated in the Result list box, the emails will be marked with strikethrough line. After removing, the email will display in the Deleted Items folder.

Delete this item: Remove the selected email.

Categorize: Add one or multiple color categories for the selected email.

Move this item: move the selected email to another mail folder.

Set as reserved email: mark the selected email as reserved, then this email will be remained when delete or move duplicate emails in bulk.

You can separately process emails in each duplicate group: Expand a duplicate group, right click the email you will process firstly, and select an option from the context menu:

Delete duplicate emails in outlook 365