How do you assign tickets to different teams depending on the email?

You can set up a dispatcher rule and provide some conditions based on the subject/description of the email, the to/from address and then set actions to assign to the concerned group inside Freshdesk. Kindly refer this link to know more on setting a Dispatcher rule: https://support.freshdesk.com/support/solutions/articles/37614-managing-tickets-using-the-dispatch-r