How to Request a Return Receipt. If you want to know when other people receive and open your emails, you can request a return receipt. A return receipt is an email notification you get when the receiver opens your email message.
Select "Tools" from the New Message menu to request a receipt in Outlook Express 6. Before sending an individual email for which you want a receipt, check the "Request Read Receipt" box. You can also set Outlook Express to give you a receipt for all messages sent, without requesting one each time. To do this, choose "Options" from the Tools menu and navigate to the "Receipts" tab. Check "Request Read Receipt for All Messages sent," and click OK.
Click on the "RR" button at the top of the message box in which you are writing your message when using Eudora. If you want to request a return receipt for every outgoing message, go into Preferences and check this option.
Go to the Tools menu in Entourage 2004 and select "Accounts" from the drop-down menu. Under the "Mail" tab, select the account you want a return receipt from and double click. This brings up the "Edit Account" box. Click on the "Options" tab. Find "Additional Headers" under "Message Options." Under "Header," type "Disposition-Notification-To" and your email address.