How do I separate emails sent from and to customers

Hello, I would like to know how to separate the emails sent to and that customers receive when they create an account from when they receive an email from a placed order and sent to when they use the contact form.

I’m also aware of this topic but does not suit my needs https://community.shopify.com/c/shopify-discussions/how-to-separate-shopify-email-from-customer-contact-support/td-p/655719

Some use cases:

  1. So when a customer creates an account, the email they RECEIVE should be FROM, let’s say, customer@domain.

  2. When the customer places an order, the email RECEIVED should be FROM orders@domain.

  3. When a customers sends a message through the store’s contact form should GO TO my support@domain.

  4. And when the customer RECEIVES a gift card should be FROM customer@domain.

How do I do that?

Thanks!