You can type the search criteria into the Instant Search box to search emails between two dates quickly. Please do as follows:

For example you want to search emails received between 2016/3/1 and 2016/3/31. Please type the search criteria received:2016/3/1..2016/3/31 into the Instant Search box, and then all emails received in this date range will be found out immediately. See screenshot below:

Note: It requires to type the dates in the default date format in your computer, such as received:3/1/2016..3/31/2016.

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.

You can also configure the Advanced Find criteria to search emails by specific date range, such as between two dates, before a certain date, or after a certain date, etc.

1. Select the email folder where you will search emails by the specific date range, put the cursor into the Instant Search box to activate the Search Tools, and then click Search > Search Tools > Advanced Find. See screenshot:

2. In the opening Advanced Find dialog box, please go the Advanced tab, and (see screenshot below):

(1) Click Field > All Mail fields > Received;
(2) Select the between from the Condition drop down list;
(3) In the Value box, type the date range in the format of <Value 1> and <Value 2>, such as <2016/3/1> and <2016/3/31>;
(4) Click the Add to List button.
Note: For searching emails before (or after) a certain date, please select the on or before (or on or after) from the Condition drop down list, and then type the certain date into the Value box.

3. Now the searching criteria has been added into the Find items that mat these criteria box. Keep selecting the added searching criteria, and click the Find Now button. See screenshot below:

Now all emails received in the specified date range are found out and listed at the bottom of Advanced Find dialog box. See screenshot below:

Sometimes, you may need to search emails in special date range, such as find emails before 2016/3/1 and emails after 2016/3/31. In this situation, you may need to enable the Query Builder by Kutools for Outlook and configure the searching criteria. Please do as follows:

1. Enable the Query Builder in Outlook. Click Kutools > Options, and then in the opening Options button, check the Restore "Query Builder" tab in Outlook Advanced Find Dialog option on the Others tab, and click the OK button. See screenshot below:

Note: This step is just for the first time. If the Query builder has been enabled already, please skip this step.

2. Select the email folder where you will search emails by the specific date range, put the cursor into the Instant Search box to activate the Search Tools, and then click Search > Search Tools > Advanced Find. See screenshot:

3. In the opening Advanced Find dialog box, please go to the Query Builder tab, and (see below screenshot):

(1) Click Field > All Mail fields > Received;
(2) Select the on or before from the Condition drop down list;
(3) In the Value box, type the date you will find emails before. In our case, we type 2016/3/1.
(4) Click the Add to List button.
(5) Repeat above (1) -(4) to add a searching criteria as Received on or after 2016/3/31.

4. Now we have added two searching criteria. Please go ahead to select the OR from the logical Group drop down list, and click the Find Now button. See screenshot below:

And now all emails received before 2016/3/1 and emails received after 2016/3/31 are found out and listed at the bottom of Advanced Find dialog box at once.