Quickly search and delete duplicate emails in Outlook

With Kutools for Outlook’s Duplicate Emails feature, you can quickly find and delete them from multiple mail folders, or find and delete all duplicates from the selected ones with two clicks in Outlook. Click for 60-day free trial without limitation!

For viewing a certain email’s last modified date or deleted date in Outlook, please do as follows:

1. Shift to the Mail view, open the mail folder containing the specified email, and then click to select the email in the mail list.
Note: For viewing a deleted email’s deleted date, please select this email in the Deleted Items folder.

2. Press Alt + Enter keys simultaneously to open the (email) Properties dialog box, and then you will get the last modified date in it. See screenshot:

Note: When deleting emails in Exchange account or IMAP account, these emails’ last modified dates will change to the time you delete them. However, the last modified dates of emails in POP accounts won’t change when deleting, so you can’t view the deleted date of deleted emails in POP accounts.

For viewing all emails’ last modified dates or deleted dates in a mail folder in Outlook, please do as follows:

1. Shift to the Mail view, open the mail folder where you will view emails’ last modified dates.
Note: For viewing all deleted emails’ deleted dates, please open the Deleted Items folder.

2. Click View > View Settings.

3. In the opening Advanced View Settings dialog box, please click the Columns button.

4. Now in the Show Columns dialog box, please (see screenshot below):

(1) Select the Date/Time fields from the Select available columns from drop down list;
(2) Click to highlight the Modified from the Available columns section;
(3) Click the Add button. (Note: After adding the Modified to the Show these columns in this order section, you can change the position of Modified with clicking the Move up button or Move Down button.)
(4) Click the OK button.

5. Now it returns to the Advanced View Settings dialog box, please click the OK button to save settings.

6. And then please close the Reading Pane with clicking View > Reading Pane > Off.

Now you will view all emails’ modified dates or deleted dates in the Modified column. See screenshot:

Note: When deleting emails in Exchange accounts or IMAP accounts, these emails’ last modified dates will change to the time you delete them. However, the last modified dates of emails in POP account won’t change when deleting, so you can’t view the deleted date of deleted emails in POP accounts.

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