Need a Visual Builder?
Postmark Doesn't Have One.
Postmark is reliable, but it forces you to code every email. SendMailOS gives you the same developer power PLUS a Drag & Drop editor for your team.
Postmark
For 25,000 emails
- No Visual Drag & Drop Builder
- Strict separation of Transactional/Broadcast
- Expensive at scale
SendMailOS
For 25,000 emails
- Drag & Drop Editor Included
- Unified API for all email types
- Highly competitive pricing
“Postmark is solid, but my marketing team couldn't use it because it requires coding HTML. I moved to SendMailOS because it gives me the API reliability I need as a developer, but also a Drag & Drop editor my marketing team can actually use.”
Why are you still paying "Rent" on your own list?
Most email platforms charge you to store your contacts. We think that’s wrong. Your data is yours.
We only charge you when you deliver value to your audience.
| Feature | SendMailOS | Mailchimp™ | Brevo™ | Postmark™ | Beefree™ |
|---|---|---|---|---|---|
| 25,000 Emails Cost | FREE (or €15 Premium) | ~$270 / mo* | ~$39 / mo | ~$42 / mo | $30 / mo (Editor Only) |
| Subscriber Limit | UNLIMITED | 25,000 Cap | Unlimited | N/A | N/A |
| Daily Send Limit | NONE | None | 300 / day (Free) | None | Cannot Send |
| Unused Credits | Roll Over (Top Ups) | Use it or Lose it | Use it or Lose it | Use it or Lose it | N/A |
| API & Webhooks | Included | Complex / Add-on | Included | Included | Editor API Only |
| Storage Fee | €0.00 | $0.01 / contact | €0.00 | N/A | N/A |
Compare vs other platforms:
Ready to stop paying "Rent" on your list?
Join 10,000+ developers and marketers who switched to volume-based pricing.
Get 25,000 free credits today.
No credit card required • Cancel anytime • 25k Free/mo