How to enable read receipt handling

To enable Outlook Sync read receipt handling, you need to turn off Outlook’s own handling first. Go to the Options - Mail and under Tracking section select Never send a read receipt.

Figure. Outlook Read Receipt handling settings.

After you turn off Outlook’s handling, go to the Outlook Sync’s settings and in Appearance tab enable Handle read receipts checkbox. From now on, Outlook Sync will handle all incoming read receipt requests.

Figure. Outlook Sync Read Receipt handling settings.