Send email ticket alert to Team

i create 5 agents, those agents was assigned to a department and a Team.

now, I create a help topic, I assigned this topic to that department and in Auto-Assign to I assign to the TEAM and when a ticket has been created the alert is not sent to the Team members.

But if I select Unassigned, the email send to the all Department members and they get the email.

Now I need to create different Teams, some Agents are in multiple Teams.

what I have to do to send the alert to the Team and not to the Department.

or how to assign an Agent to multiple Departments.