That is true, but at a very large multinational, I used to recieve over 100 send to all emails a day, and three real ones. Some of the 'send to all' emails wer

That is true, but at a very large multinational, I used to recieve over 100 send to all emails a day, and three real ones. Some of the 'send to all' emails were pretty important, so I had to read them, but a lot of them added nothing, and were sent to 400'000 people. I think each inappropriate global send to all cost $1000+, assuming people disgarded it pretty quickly. +Low estimate, assuming it takes 1 second to disgard the email, everyone reads it, and gets paid minimum wage.