itsystems
While you can't create two separate Tickets from a single email automatically, you can have the Ticket created under one Department and Refer any number of other Departments to the Ticket. You can accomplish this by adding the main Department's System Email in the To header then add any subsequent Departments' System Emails in the CC field. The system will create the Ticket under the Department in the To header then Refer the Ticket to the remaining Departments. Keep in mind that Referral is more of a view-only role.
With this being said, you can actually manually create a second Ticket from any entry within the original Ticket. You can do so by going to the desired entry within the Ticket, clicking the dropdown arrow on its bar (with date, etc.), and selecting "+ Create Ticket". This will allow you to create a second Ticket using the contents of the chosen entry.
Cheers.