The Properties option lets you check the status of any item you've sent. For example, you can see when an item was delivered and when the recipient opened or deleted the item. If a recipient accepted or declined an appointment and included a comment, you'll see the comment in the Properties window. You'll also see if a recipient marked a task Completed.
The Properties option also shows information about items you receive. You can see who else received the item (except for blind copy recipients), the size and creation date of attached files, and more.
For information on printing status information for an item, see To print status information of an item.
For information about a document, use the Activity Log in Properties.