I apologize to you all for the perhaps silly question.
I am creating a directory consisting of a product category and subcategories. Many email addresses are connected to these sub-categories. I would like to create a system that allows me to send an email to all addresses in the subcategory. I don’t really know how to do it. It’s possible to do it ? For example: I have a macro category WINES, a sub-category WHITE WINES. 2 email addresses are registered in this sub-category. I would like to select the subcategory WHITE WINES and I would like the email to reach all the linked addresses.