We have a project that contains several boards for different team. When any issue is sent to 'Testing' and unassigned or assigned to a member of our QA team, the issue appears on QA kanban board. Some members of QA team are willing to receive email notifications whenever an issue appears on that board or, if that's not possible, whenever the board is updated. Is there a way for a user to set up their notifications in that way? Is there a way for a me as a PM to set up the project or the board in that way? If not for email notifications - maybe there's some Slack bot for that?