Who�s Checking Your E-mail Box Activity?
It could be the person who sent you the e-mail if they take advantage of an Internet web site called �didtheyreadit.com.� The site is offering a service that will report on whether e-mail sent to a recipient is opened. The covert surveillance e-mail service is drawing criticism from privacy rights groups like the Electronic Information Center (EPIC). In the past e-mail services like Eudora offer an option to let recipients volunteer to senders that they have received the e-mail. It�s almost like having an informant tell a visitor to your home that you are really there, but you are choosing not to respond to the door bell.
Who Got the Message? There's a Way to Know, New York Times, June 3, 2004