These articles show us the need to be careful and send the e-mail to the correct person, and to proof read before sending. I myself have come close to clicking the "reply all" button. Here are some examples.
* Wrong Address: I had an email address at BU that was exactly the same as a new hire in the physiology department, whose previous email address was @havard.edu. Most people knew he switched jobs and just changed it to @bu.edu. Therefore for about a year I got all kinds of emails from his colleagues and one desperate potential patient, about psychology conferences. This example shows how e-mails can be sent to the wrong person if the new e-mail address is not entered correctly.
* The Proof is in the Reading: My boss and I were struggling to get an important server running one day. We finally got it working mid-afternoon and my notoriously poor spelling boss sent off a quick email to the whole company apologizing for the “incontinence” of the server being down. He didn't live that down for a while. Spelling was the mistake here. Proof reading could have saved some embarrassment. * Can't Take It Back: a number of years ago, during yearly review time, my boss sent a spreadsheet out to all his direct reports, me included. It contained all of our historical salary info and proposed raises and bonuses. I was underpaid. In the busy world of business we can get in a hurry, but the boss should have taken a few minutes to look over what was being sent.