A read receipt is a receipt generated when your email has been opened by the recipient. For as long as your email remains unread or unopened in their inbox, this receipt isn’t generated.
Keep in mind that not all the email providers and applications support read receipts in Outlook. For those who don’t support it, you will not receive any receipts for your emails in Outlook.
Request a Read Receipt For All Outgoing Emails In Outlook
1. Open Outlook on your computer.
2. Click on the File tab at the top.
3. Select Options on the left sidebar.
4. Select Mail from the left sidebar on the settings menu.
5. (On the right pane) Scroll down until you find the one that says Tracking (section).
6. Inside the Tracking (section), click the checkbox saying Read receipt confirming the recipient viewed the message.
7. Click OK at the bottom.
From now on, Outlook will request a read receipt for all of your outgoing emails.
Your all done!