Comparison
tinysend vs Postmark
Postmark is beloved for its deliverability and clean API — and rightly so. But it's transactional-only by design. If you need drip sequences, contact management, or the ability to use your own sending provider, you're adding a second tool. tinysend gives you Postmark-quality deliverability (you can even use Postmark as your BYOK provider) with full automation built in.
Get started free →Why teams switch to tinysend
Keep Postmark's deliverability
tinysend's BYOK lets you send through your existing Postmark account. You get the sequences, contacts, and automation layer on top — without sacrificing the deliverability you already have.
Automation Postmark doesn't have
Postmark is deliberately transactional-only. tinysend adds email sequences, lifecycle automation, and contact segmentation — all triggerable via the same clean REST API you're used to.
Usage-based, not message-pack pricing
Postmark sells message credits in pre-purchased blocks. tinysend bills per-send with no over-age surprises — pay for exactly what you use, scaled to your actual monthly volume.
Feature comparison
Transactional-only vs full lifecycle email platform
| Feature | tinysend | Postmark |
|---|---|---|
| Transactional email API | ||
| Email sequences / drip campaigns | ||
| Contact management | ||
| Audience segmentation | ||
| Bring Your Own Key (BYOK) | ||
| Use Postmark as backend | ||
| Sequences as code (CLI) | ||
| Usage-based pricing | ||
| Webhooks | ||
| Free tier | ||
| Agent-native (AI automation) | ||
| Templates with variables |
Pricing comparison
At 50K emails/month and 25K contacts
tinysendper month
- Usage-based — pay for what you use
- BYOK — use your own sending provider
- Free tier included
per month
- Transactional only — no sequences, contacts, or lifecycle automation
- No free tier — starts at $15/mo for 10k messages
- Message credits purchased in packs, not true usage-based billing
- Need a separate marketing/automation tool (+$49-100/mo)
- No BYOK — locked into Postmark infrastructure
Who should use tinysend?
Teams who love Postmark's deliverability and want to keep it while adding automation.
Developers who need transactional email today but will need drip sequences in 3 months.
AI agent builders who need programmatic lifecycle email — not just one-off transactional sends.
Companies using Postmark + a second automation tool who want to consolidate to one platform.
Startups who want a free tier to start and usage-based billing as they scale.
Exploring all your options?
See the best Postmark alternatives →Please bring your own sender...
from: tinysend
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Ready to start sending?
1,000 emails/month free. Full API access. Set up in under 5 minutes.