How to connect Arsys professional email service with Shopify?

Hello everyone,

I have my shopify store with a domain contracted from Shopify.

I have just signed up for a professional email service with Arsys hosting.

All the documentation I see from Shopify is focused on connecting mail hosting services exclusively for Gsuite and Zoho.

I would like to know the specific steps (DNS configuration) to connect the hosting where I currently have contracted the professional email (Arsys) with Shopify.

Can anyone help me with this?

thanks in advance