OpenSend
The facts below are what the maker publishes about OpenSend, checked and dated. Our editors have not written about it yet.
Plans and prices
From OpenSend's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Lite | $10 a month | 15,000 API + broadcast emails/mo · 3 verified domains · 5 API keys · Community support · $10/mo |
| Starter | $19 a month | 51,000 API + broadcast emails/mo · 10 verified domains · 10 API keys · Email support · 48h · $19/mo |
| Growth | $99 a month | 120,000 API + broadcast emails/mo · 1,000 verified domains · 25 API keys · Priority support · 12h · $99/mo |
| Free | — | 500 API + broadcast emails/mo · 1 verified domain · 2 API keys · Community support · $0/mo |
| Scale | Priced on request | Unlimited emails (your SES) · Unlimited domains · Unlimited keys · Dedicated infra & VPC peering · Slack channel · 1h SLA · Let's talk |
The facts
Each one read from OpenSend's own pages, with the date it was checked.
The company
- Company
- The homepage says OpenSend is built by Jaeyun Ha and Ashley Ha.checked 8 Oct 2026
What it does
- Data control
- Self-hosted OpenSend uses the operator's AWS SES quota, database, secrets, and observability stack.checked 8 Oct 2026
- Features
- The product includes contacts, segments, topics, email automations, templates, open and click analytics, and email event tracking.checked 8 Oct 2026
- Integrations
- The self-hosting guide documents AWS SES/SNS, PostgreSQL, Redis, S3, Cloudflare DNS automation, and Google OAuth configuration.checked 8 Oct 2026
- Overages
- Cloud sends are not blocked after the quota; overage is billed at $0.85 per 1,000 emails until the customer upgrades.checked 8 Oct 2026
- Product
- OpenSend describes itself as an open email infrastructure platform with a Resend-compatible API, SDK, broadcasts, contacts, and dashboard.checked 8 Oct 2026
- Security
- Dashboard and API routes are tenant-scoped through Better Auth organizations and server-side ownership checks.checked 8 Oct 2026
- Self-host license
- The pricing page says OpenSend can be used, modified, and self-hosted for free, including commercially, under ELv2, with hosted resale as the stated restriction.checked 8 Oct 2026
- Sending
- OpenSend sends email through AWS SES and supports API sends, batch sends, scheduled sends, and broadcasts.checked 8 Oct 2026
- Support
- The Free and Lite plans include community support, Starter has email support with a 48-hour response target, and Growth has priority support with a 12-hour target.checked 8 Oct 2026
- Webhooks
- Outbound webhooks use HMAC signatures with Svix-compatible headers, which recipients should verify before processing events.checked 8 Oct 2026
Alternatives to OpenSend
- 1
turboSMTP
Free planAndroidiOSWebAPI8.2From €14.95 a month - 2
MailerSend
Free planiOSWebAPI7.8From $7 a month - 3
Postmark
Free planWebAPI7.6Free plan - 4
Mailjet
Free planWebAPI7.5From $9 a month - 5
Twilio SendGrid
Free planAPI7.2From $19.95 a month - 6
Resend Broadcasts
Free planWebAPI7.1From $20 a month