An anonymous reader writes: An article at BusinessWeek highlights an issue most corporate workers are familiar with: the flood of useless reply-all emails endemic to any big organization. Companies are beginning to realize how much time these emails can waste in aggregate across an entire company, and some are looking for ways to outright block reply-all. "A company that’s come close to abolishing Reply All is the global information and measurement firm Nielsen. On its screens, the button is visible but inactive, covered with a fuzzy gray. It can be reactivated with an override function on the keyboard. Chief Information Officer Andrew Cawood explained in a memo to 35,000 employees the reason behind Nielsen’s decision: eliminating 'bureaucracy and inefficiency.'" Software developers are starting to react to this need as well, creating plugins or monitors that restrict the reply-all button or at least alert the user, so they can take a moment to consider their action more carefully. In addition to getting rid of the annoying "Thanks!" and "Welcome!" emails, this has implications for law firms and military organizations, where an errant reply-all could have serious repercussions.