I only have these two email notifications active (assignee and mentions), both of which I need turned on so that I don't miss anything important.

However, I keep getting dumps of emails that I am not assigned to, nor mentioned in.
I have asked my admins 4 times, and they can't figure out why I'm getting all those emails that I'm not mentioned in.
Only common denominator in the email dumps: "Priority: Backlog"