Shopify Email

Shopify Email is the obvious choice if you already run your store on Shopify. You don't need a separate account or payment setup, and it connects directly to your customer list and order history. The free tier gives you 10,000 messages per month, which covers promotional email for small and medium-sized stores.

The integration with Shopify Flow lets you automate email based on customer behavior like purchases or cart abandonment. As you grow, paid plans open up higher limits.