Best Email Marketing Software for E-commerce of 2026
E-commerce stores ask more of their email marketing software than most businesses do — abandoned cart flows tied to real product and inventory data, recommendations based on purchase history, and increasingly, SMS or WhatsApp running alongside email rather than as an afterthought. Here's how the leading options compare for e-commerce specifically in 2026.
What e-commerce email needs that general email marketing doesn't
Havari, Klaviyo and Shopify Email compared
E-commerce email marketing software at a glance
| Platform | Best for | Abandoned cart depth | Product recommendations | Multi-channel |
|---|---|---|---|---|
| ⭐ Havari | E-commerce stores that want email working alongside SMS and WhatsApp in one platform | Multi-step flows with SMS/WhatsApp follow-up on unrecovered carts | Purchase-history segmentation shared across every channel | Email, SMS, WhatsApp, Instagram and Messenger, all on one contact record |
| Klaviyo | E-commerce brands that sell almost exclusively through email and want the deepest email-only automation | Very deep — highly configurable, product- and inventory-aware flows | Extensive, e-commerce-specific behavioural automation | Email + SMS |
| Shopify Email | Small Shopify stores wanting a simple, native starting point | Basic — a single follow-up email, limited customization | Light, template-based suggestions | Email only |
1. Havari — best for e-commerce that sells across channels
Havari's e-commerce advantage isn't deeper email-only automation than a specialist tool — it's that email, SMS and WhatsApp share the same contact record, the same segments and the same automation builder. An abandoned cart flow can start with an email, follow up with an SMS a day later if the cart's still unrecovered, and escalate to WhatsApp for a high-value order — all built as one sequence rather than stitched together across separate tools with separate customer data.
Where Havari fits best
Being honest about the trade-off
If your store sells purely through email with no SMS or WhatsApp in the mix, Klaviyo's e-commerce-specific behavioural automation is genuinely deeper — built over years specifically for that use case. Havari's strength is breadth across channels on one contact record, not out-automating a specialist at email alone.
2. Klaviyo — best for email-only e-commerce automation depth
Klaviyo remains the deepest email-only e-commerce tool available, with automation flows that can branch on product category, purchase frequency, predicted spend and more. For a store that sells entirely through email marketing and has the team to configure that depth, it's a strong specialist choice. The trade-off is that SMS is an add-on rather than a native part of the same platform, and the automation complexity brings a real learning curve.
3. Shopify Email — best for small stores wanting the simplest setup
Shopify Email's advantage is how little setup it needs — it's built into the Shopify admin, pulls in your products automatically, and gets a store sending its first campaign in minutes. What it doesn't offer is much automation depth: abandoned cart follow-up is limited to a single email, recommendations are template-based rather than behavioural, and there's no SMS or WhatsApp option at all. It suits a store just getting started, but most outgrow it once volume or channel needs increase.
Which one should you actually pick?
A quick way to decide
Selling purely through email, with a team who can configure deep automation
Klaviyo's e-commerce-specific depth is the strongest fit, if you're prepared to accept email-only reach and its learning curve.
Just starting out on Shopify with low volume
Shopify Email is a reasonable, low-friction starting point until your automation and channel needs grow.
Already messaging customers on SMS or WhatsApp, or planning to
Havari keeps email working alongside those channels on one contact record, rather than requiring a second platform and a second customer database.
“The right e-commerce email tool depends less on how deep its email automation goes, and more on whether email is the only channel you'll ever want to use.”
Is Klaviyo overkill for a small e-commerce store?
It can be. Klaviyo's depth is most valuable once you have enough order volume and product variety to justify configuring detailed behavioural flows — for a small or new store, a simpler tool is often the better starting point.
Can I add SMS or WhatsApp to Shopify Email later?
Not natively — Shopify Email is email-only, so adding SMS or WhatsApp means introducing a separate platform and syncing customer data between the two.
Does Havari integrate with Shopify?
Havari is built to sync store, order and customer data so that email, SMS and WhatsApp campaigns can be built on the same product and purchase history stores already rely on for e-commerce automation.
For a store that sells only through email and wants the deepest possible email-specific automation, Klaviyo earns its reputation. For most e-commerce businesses that also want to reach customers by SMS or WhatsApp — without maintaining two platforms and two versions of the same customer list — Havari is the more practical choice for 2026.