Postmark vs Shopify
Reliable transactional email with fast delivery
vs. Dominant SaaS commerce platform — Online Store + Hydrogen headless
Pricing tiers
Postmark
Free
100 emails/month forever. No credit card. Side projects and testing.
Free
Basic — 10k
10,000 emails/month. Overage $1.80/1k. Unlimited emails/day.
$15/mo
Pro — 10k
10,000 emails/month. Overage $1.30/1k. Inbound email + message streams.
$17/mo
Platform — 10k
10,000 emails/month. Overage $1.20/1k. Team collab, more domains.
$18/mo
Enterprise (>1.5M)
Custom for senders exceeding 1.5M/month.
Custom
Shopify
Starter
$5/mo. Sell via social/chat links. No checkout site. Basic.
$5/mo
Basic
$29/mo ($19 annual). Full store. 2.9% + 30¢ online. 2 staff.
$29/mo
Shopify
$79/mo ($49 annual). 2.7% online. 5 staff.
$79/mo
Advanced
$299/mo ($229 annual). 2.5% online. Custom reports. 15 staff.
$299/mo
Plus
$2,300/mo (starting). Enterprise features, checkout customization, unlimited staff.
$2300/mo
Enterprise
Custom. For $1M+ GMV merchants. Dedicated support, Checkout Extensibility.
Custom
Free-tier quotas head-to-head
Comparing free on Postmark vs starter on Shopify.
| Metric | Postmark | Shopify |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
Postmark · 12 features
- Activity Search — Full-text search over sent messages for 45-365 days.
- Bounce Handling — Automatic hard/soft bounce detection + suppression management.
- Broadcast Messages — Via separate Broadcast Message Stream. Bulk sends with throttling.
- DKIM + SPF — One-click verification + auto-renewal of DKIM keys.
- Inbound Email — Route inbound emails to your webhook. Parse attachments, threads.
- Message Streams — Isolate transactional from marketing for separate deliverability reputation.
- Open + Click Tracking — Configurable at template or send level.
- Raw API Access — 100+ endpoints for bounces, servers, tags, templates, stats.
- Servers — Multi-tenant isolation: each "server" has its own API token + reputation.
- Templates — Mustachio template language with variables, alias + versioning.
- Transactional Send — Reliable API for password resets, receipts, notifications. Sub-10s delivery.
- Webhook Events — Delivery, bounce, spam complaint, open, click, subscription change.
Shopify · 22 features
- Admin APIs — REST + GraphQL for management.
- App Store — 8,000+ apps.
- B2B (Plus) — Company accounts + catalogs.
- Checkout — Shopify-managed checkout (PCI-compliant).
- Checkout Extensibility — UI extensions in checkout (Plus).
- Collections — Manual + smart grouping.
- Customers — CRM-lite + B2B (Plus).
- Discounts — Automatic + code-based.
- Hydrogen — React/Remix headless framework.
- Inventory — Multi-location stock.
- Markets — Multi-region selling (currency, language).
- Online Store — Default Liquid-based storefront.
- Orders + Fulfillment — Multi-location fulfillment.
- Oxygen — Edge hosting for Hydrogen (Plus).
- Products + Variants — Full PIM.
- Shipping + Rates — Carrier integrations.
- Shopify Functions — Rust/WASM backend extensions.
- Shopify Payments — First-party payment processor.
- Shop Pay — Accelerated checkout with saved payment.
- Storefront API — GraphQL for custom storefronts.
- Theme Store — First-party + paid themes.
- Webhooks — Event subscriptions.
Developer interfaces
| Kind | Postmark | Shopify |
|---|---|---|
| CLI | — | shopify CLI |
| SDK | postmark-dotnet, postmarker (Python), postmark-go, postmark (Node), postmark-php, postmark-rails | @shopify/admin-api-client, @shopify/hydrogen |
| REST | Postmark REST API | Admin REST API |
| GRAPHQL | — | Admin GraphQL API, Storefront API |
| MCP | — | Shopify MCP (unofficial) |
| OTHER | Inbound Email, SMTP Relay, Webhooks | Liquid Templates, Shopify Admin, Shopify Webhooks |
Staxly is an independent catalog of developer platforms. Outbound links to Postmark and Shopify are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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