Microsoft Outlook has a feature which lets you request for read receipts from the people you are sending the mail to. A read receipt gets fired when the recipient opens the mail you have sent.

Some of the Microsoft Office Outlook users like to turn on Read Receipts for all their e-mail. This way, any time their e-mail is read by another Outlook user, they will be notified that their e-mail reached its destination. While some find this feature useful, others may not like getting deluged with these requests. To increase privacy, you can choose to ignore these requests altogether so people will not know at what time you read your e-mail.

1. From Microsoft Outlook, click “Tools” then “Options”.
2. When the “Options” multi-tabbed dialog box appears, select the “Preferences” tab.
3. Click the button “E-Mail Options”.
4. When the “E-Mail Options” dialog box appears, click the “Tracking Options” button.
5. Click the radio button “Never send a response”.
6. Click “OK” on the three dialog boxes to close them.

Now the next time you will never see a Outlook dialog asking you to send read receipts.