Why email setup decisions matter from day one
Email is the single most-leveraged channel in ecommerce. Returning customers buy at higher rates than new visitors, and email is the cheapest way to bring them back. For most Shopify stores, email drives 20-40% of total revenue once a real program is running. Setting it up properly from day one — even if you are just starting — is what makes that possible.
This guide walks you through Shopify's native email setup the right way: domain authentication first, transactional emails second, marketing campaigns third. It also covers the realistic question every Shopify merchant eventually asks: stay on Shopify Email or migrate to Klaviyo, Omnisend, or another platform?
It assumes you have already created your store. If you are hitting deliverability or sending problems instead of setup questions, see Shopify Email Not Sending.
It covers:
- What Shopify Email actually is (and what it is not).
- The four-step setup process — domain, transactional, marketing, flows.
- How to authenticate a custom sender domain (SPF, DKIM, DMARC).
- Configuring all transactional email notifications.
- Setting up Shopify Email for marketing campaigns.
- The "Shopify Email versus Klaviyo / Omnisend" decision.
- The first three email flows every Shopify store should build.
- When to bring in an expert.









