How to prgramatically send email to a customer in custom shopify app

[jedi]

Hi,

How to programmatically send an email to a customer in a custom Shopify app (that I am building for one of my client -> merchant) using the connected domain to the store i.e. the FROM email should belong to the the connected shopify store domain. E.g. if the store domain is shoes.com then from should be discosunt@shoes.com. 

Is it possible to achieve this functionality in my custom Shopify app?