I hear you. People get used to all sorts of funny workflows, and use their email to maintain a todo list. I do this sometimes myself. Maybe different needs can be accommodated with a personal preference setting or an additional admin setting?
I get complaints on my team all the time about these emails - we are constantly spamming ourselves.
Update - a graphic visualisation of the impact of this in my email inbox after a few hours of work in the forum today. This is typical.
