I was called in to help a company that was unindated with e-mails. People couldn't get work done. And where did the e-mails come from? They were sending the e-mails to themselves.
Here's the background. It had been corporate culture for people to send e-mails to huge lists that covered entire departments, even if the e-mail was not applicable to 99% of the people on the list. I have always found this to be a huge waste of time, and a serious security breach, but you have managers that start this "in case someone needs this" and "so I don't have to send it again".
So people were already used to dealing with high volumes of e-mails that were irrelevant to them, but not everyone was technologically savvy. It would appear that most people did not know the difference between the "reply" and "reply all" button on their e-mail programs.
Now the fun begins. One employee thinks it is acceptable to use the company e-mail to solicit people for his multi-level marketing side-business. He sends the e-mail to about 500 people initially. A trip wire goes off for someone as they have had absolutely enough of useless e-mails.
She responds "please take me off this list!!!" but instead of hitting "reply" she hits "reply all". 500 people get the e-mail. Someone else responds "take me off this list too" and also hits "reply all". 500 people get this e-mail.
Someone responds "why are all these people asking me to take them off the list? I didn't send them anything." 500 people get this e-mail.
One guy, just to be a wise-guy, responds to everyone "OK, I took you off the list". 500 people get this e-mail. Someone else responds "please take me off too", and 500 people get this e-mail. Several other people respond "you haven't taken me off the list. I'm still getting these e-mails". Thousdands and thousands and thousands of e-mails are bouncing around this company like the most evil game of ping-pong you could imagine.
It is so bad, that people are reporting e-mails from their own company as spam. These people are not getting the e-mails they need.
These people are too naive to understand that they are causing their own problem. An e-mail sent to everyone about the cause of the problem is met with surprise, surprise, some people responding ... to all ... that this doesn't seem to be helping.
We have to schedule small group training sessions with about 5 to 15 people in each session to show them how to effectively use their e-mail. And definitely to know the difference between "reply" and "reply all". This takes three days. Three days!!