Invoice to multiple e-mail addresses - all addresses in To

Hi all, I’m new here. Just started using Invoice Ninja, I’m impressed how feature-rich it is. Love the API!

I know it is possible to send an invoice to multiple e-mail addresses. But each contact receiving the invoice doesn’t know someone else received the invoice too. In this case a client wants me te send all invoices to him (A) his partner (B) and his treasurer ©. The treasurer makes the payments only if he knows for certain that A and B also received the invoice.

Is it possible to send the invoice by email showing all receiving contacts in the “To” field of the mail?

Sorry guys. Double post using the back button of my browser. Wanted to edit my message. I’m self-hosting, 4.2.0