Re: More detail
"thats if someone has actually configured it to send out emails...."
And if the recipient of the emails is still there.
It's easy enough to set up a warning system. Protecting that warning system against the ravages of management changes is a different matter and almost certainly outside the powers of whoever set it up. If you were the one who was the designated recipient of the email and you've just been booted out of the job are you going to be in a mood to warn whoever did the booting that that particular mail box needs to be monitored? Is the booter even going to listen if you did? And will the booter get booted out in the next bout of changes?
There needs to be personal responsibility on those making such changes to ensure that everything like this gets covered under the new organisation. HMG has woken up to the fact that national infrastructure needs to be protected even when it's in private hands. Maybe that protection should extend to personal sanctions on those involved, even up to CEOs and board members. Make them sweat a little. After a few big personal fines or gaol sentences businesses would become a little less cavalier about reorganisations and outsourcing.