Compare
Resend alternative for transactional email
Keep a simple API key + POST /emails developer experience. Run production on owned transactional mail infrastructure with a clear path to Dedicated servers and IPs.
- POST /emails
- stx_ API keys
- Owned Pool · Dedicated
At a glance
Same developer habits. Different infrastructure.
You still send with an HTTP API and an SDK in your language. The difference is whose network carries the mail — and what “Dedicated” actually means.
| Attribute | Resend | SuperSend TX |
|---|---|---|
| Send API | POST /emails | POST /emails |
| API keys | re_… | stx_… |
| npm | resend | supersendtx |
| Infrastructure | Cloud email (SES-class) | Owned transactional network |
| Free tier | 3,000 emails/mo (100/day) | Free production after domain + card on file |
| Paid volume | Pro from $20/mo · Scale tiers | Pro from $20/mo · Dedicated from $299 |
| Dedicated | IP add-on ($30/mo on Scale) | Managed servers & IPs (from $299/mo) |
Who this is for
Owned pipe for mail that has to arrive
Teams that like a modern send API but want infrastructure they can explain to compliance, finance, and deliverability.
Owned infrastructure
Transactional mail on a network we operate — not just an API in front of someone else’s cloud pipe.
Paid Pool, declining overage
Pro and Scale include volume with overage that declines as you grow — not a free-tier mix on the same reputation.
Real Dedicated tier
Managed servers and IPs for your workspace when you outgrow shared Pool — same API either way.
Familiar send shape
Bearer stx_… keys, flat from / to / subject / html, and SDKs for Node, Python, PHP, Ruby, and Go your team can swap in quickly.
When to stay
Stay on Resend when…
Switching for its own sake is a waste. Keep Resend if these are true.
- You are happy on the free or early Pro tier and do not need owned-server isolation
- React Email + Resend’s product surface is already the team standard and migration cost dominates
- You need Resend Marketing (contact-based broadcasts) in the same vendor as transactional
- A $30/mo dedicated-IP add-on on Scale is enough isolation for your compliance story
Choose SuperSend TX when production reputation should stay on a paid transactional network, when Dedicated must mean managed servers and IPs (not only an IP label), or when you want the same flat send API with Pool → Dedicated without changing application code. Pricing figures above are from Resend’s public pricing page (fetched 2026-08-04) — confirm live before budgeting.
Migration
Cut over in minutes
Keep your templates and product logic. Change the client, key, and base URL.
- 1
Create an API key
Issue a stx_ key in the dashboard and keep it scoped to the right environment.
- 2
Verify your domain
Add SPF, DKIM, and return-path — including one-click apply for Cloudflare and GoDaddy.
- 3
Point the client
Use supersendtx (or raw HTTP) against api.supersendtx.com with Bearer stx_…
- 4
Map the fields
Follow the Resend migration guide for field-for-field mapping. Keep React Email components; send via the React Email guide.
- Self-test without a card, then Free production with a verified domain and payment method on file
- Webhooks, templates, inbound, SMTP, SDKs, CLI, and MCP on every plan
- Same send API from Free through Dedicated
SuperSend TX is now Ranla
Same critical transactional email on the same infrastructure — signup and pricing live on ranla.ai, with an AI growth marketer included.
FAQ
Resend alternative FAQ
Is SuperSend TX a Resend alternative?
Yes — for transactional email. You keep a flat POST /emails developer flow with Bearer stx_ keys, then run production on Pool or Dedicated infrastructure we operate. Field mapping lives in the Resend migration guide. We do not frame the product as a clone; evaluate infrastructure and Dedicated packaging on their own merits.
Is SuperSend TX a drop-in replacement for Resend?
For most transactional sends, yes. You swap the API key (stx_…), point to api.supersendtx.com, and POST /emails with from, to, subject, and html or text. React Email components can keep using emails.send({ react }) via the Node SDK. See the Resend migration guide for field mapping.
How does SuperSend TX pricing compare to Resend?
Both list Pro around $20/mo for 50,000 emails on public pricing. Resend also offers a free sending tier (3,000/mo) and a dedicated-IP add-on on Scale. SuperSend TX Free includes capped production after a verified domain and payment method on file (no charge until you upgrade); Dedicated starts at $299/mo for managed servers and IPs. Confirm live pricing before budgeting — figures change.
When should I stay on Resend?
Stay if the free or early Pro tier is enough, if Resend Marketing contacts are part of the same vendor story, or if a Scale dedicated-IP add-on satisfies compliance. Switch when you want transactional-only reputation on infrastructure we operate, or Dedicated that means managed servers — not only an IP add-on.
Can I keep React Email if I leave Resend?
Yes. React Email is a separate open-source toolchain. Install supersendtx with @react-email/render and pass your component to emails.send({ react }), or push rendered HTML with the CLI. See the Send React Email guide.
Can I use the same npm package patterns as Resend?
Yes. Install supersendtx and call client.emails.send() with a similar shape. SDKs also exist for Python, PHP, Ruby, and Go.
What infrastructure does SuperSend TX run on?
Owned transactional mail infrastructure — Pool for production mail and Dedicated for managed servers and IPs we build, warm, and operate.