Add BCC to vm3 confirmation email

[liorclub]

Hi,
I would like to connect my orders to 3rd party - yotpo.
I need to add BCC with yotpo email in order and than yotpo send review request after 30 days.

Where can I add this ?
I found vmMail in shopsfunctionsf.php but couldn't find the place to add this.

thanks for your help