I was more imagining that it was going to an email account called e.g. "devops@"; and then when you left (possibly very quickly, e.g. via termination), the need for the continuity of that account was forgotten, because it had never become institutional knowledge; and then during a reorg, a new group (= email distribution list) was created to match the new department name; with nobody remembering to forward devops@ to the new address, because it wasn't receiving emails anybody needed to see on any sort of consistent basis, only these once-in-a-blue-moon emails.
That's one reason why nobody who knows what they're doing relies (solely) on email for monitoring. You use a monitoring solution, and if that whole system gets "forgotten" then there are bigger problems anyway.
