For my implementation, I have no need to send an email of the invoice to anyone. The invoices can be created, filed and wait for payment to be made. A such I would like to turn the email function off. Is that possible?
No the system does not send any emails if you doesn’t configured the system to do so.
You can mark an invoice as “sent” as you are free to PRI t an invoice and send it via postal service. That why you can manually change the status.