Self-hosted v0.6.0 — live now

Open-source email marketing you own.

Self-host today — free, AGPL, BYOS, zero per-subscriber fees, zero per-send fees, ever. Managed cloud coming soon with a free tier and Pro/Team plans — join the waitlist for 3 months of Cloud Pro free at launch.

Self-host now Join cloud waitlist

Subscribers get 3 months of Cloud Pro free when we launch — no credit card.

GitHub · Documentation · Changelog

Everything you need to ship email

Six core capabilities that turn SendDock into a complete email platform — no add-ons, no metered limits, no surprise bills.

Projects & workspaces

Multiple isolated projects per workspace, each with its own subscribers, templates, SMTP and stats. Switch contexts without losing state.

Subscriber management

Add manually or via API, import from CSV with email validation and disposable-domain filtering, manage status and paginate cleanly.

Templates, your way

Code with CodeMirror or drag-and-drop with GrapeJS. Variables like {{name}} are replaced per recipient at send time.

Three send paths

Transactional /send, batch with per-recipient variables, or broadcast to all active subscribers. Per-project rate limits keep abuse in check.

Tracking & deliverability

Open and click tracking out of the box, RFC-3464 bounce ingestion (in-session, webhook and IMAP), and a project-level suppression list that survives every send.

Secure by default

HttpOnly cookie auth with JWT rotation, bcrypt password hashing, SHA-256 hashed API keys, HMAC-signed webhooks. All your data, on your infrastructure.

Built for engineers and marketers alike

A dashboard designed for clarity. Schedule campaigns, build templates, manage subscribers — all from a modern, keyboard-friendly UI.

app.senddock.dev

Newsletters

Schedule and send email campaigns to your subscribers.

Name Status Scheduled For Sent / Failed
Monthly Update — May scheduled May 1, 2026, 9:00 AM 0 / 0
Spring Product Launch sending Apr 24, 2026, 10:00 AM 847 / 3
Welcome Series #4 sent Apr 18, 2026, 8:00 AM 2,341 / 12
Q1 Recap sent Apr 1, 2026, 9:00 AM 2,289 / 0

How SendDock compares

Other tools force a tradeoff: developer-friendly or marketer-friendly. Self-hostable or modern. SendDock is built to be both.

SendDock Listmonk Mailchimp Resend
Self-hostable AGPL-3.0 AGPL-3.0 — —
Visual drag-and-drop builder GrapeJS, built-in — Built-in React Email (code)
REST API for everything Project-scoped keys Partial Yes Yes
BYOSMTP Native Native — —
Per-subscriber pricing $0 self-host · cloud by sub count (never per send) $0 $13–$1,000+/mo Per email sent
Multi-project isolation First-class Lists only Workspaces (paid) Yes
Modern, designed UI Yes 2014-era admin Yes Yes
Fits devs and marketers Code + Visual Devs only Marketers only Devs only

Based on each product's public documentation as of April 2026.

API-first by design

Every feature in the UI maps to a REST endpoint. Generate project-scoped API keys, embed email logic in your stack, and call /send from anywhere your code already runs.

Go

Built with Go

Fast, concurrent, compiled single binary. Powered by stdlib net/http.

Vue

Vue 3 + TypeScript

SPA powered by Vite, Pinia, and Tailwind CSS 4.

DB

PostgreSQL

Solid schema managed by goose migrations and sqlc.

curl -X POST https://your-instance.com/api/v1/projects/{id}/send \
  -H "Authorization: Bearer sk_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "to": "user@example.com",
    "template_id": "uuid",
    "data": {"name": "John"}
  }'

Simple, flat pricing

Two ways to run SendDock. Self-host today for full control with unlimited subscribers and no per-sub fees ever. Or wait for managed cloud — no infra to operate, with subscriber tiers because we pay the hosting. Same Pro/Team features in both modes. Join the waitlist for 3 months of Cloud Pro free at launch.

Community

Free

AGPL-3.0

  • Single user, multiple workspaces
  • Subscribers, templates, broadcasts
  • BYO SMTP, unlimited sends
  • Bounce ingestion + suppression list
  • Click & open tracking
  • API keys + webhook dispatcher
Self-host on GitHub

Pro

$9/mo

$90/yr · save 17%

Everything in Community, plus:

  • Pro Analytics dashboard (funnel, opens-over-time, top links)
  • Webhooks management UI
  • Audit log (every sensitive action)
  • Soon: send-time heatmap, engagement score
Subscribe — $9/mo

🎁 First 50 customers get 3 months free — code LAUNCH3FREE

Most popular

Team

$29/mo

$290/yr · save 17%

Everything in Pro, plus:

  • Multi-user workspaces, unlimited members
  • Roles: owner, admin, developer, viewer
  • Admin user creation (no public registration needed)
  • Soon: A/B testing, segments & tags, approval workflow
Subscribe — $29/mo

Enterprise

Custom

From $149/mo

Everything in Team, plus:

  • SSO (SAML / OIDC) and SCIM
  • Per-project ACLs and per-seat billing
  • White-label tracking domain
  • Priority support and SLA
Contact us

Cloud (senddock.dev) — coming soon

3 months Pro free

Don't want to operate your own SendDock? Cloud runs it for you — same Pro and Team features as self-hosted, same prices, you skip the setup. Still BYOS for sends (you bring your SMTP); cloud only adds subscriber tiers because we pay for the hosting.

Free

$0

up to 1,000 subscribers

Pro

$9/mo

up to 10,000 subscribers

Team

$29/mo

up to 50,000 subscribers

Scale

$99/mo

up to 250,000 subscribers

Above 250k subscribers or custom needs (SSO, dedicated infra, SLA) → talk to us. Self-hosted is always unlimited at the same Pro/Team prices.

Reserve 3 months free Or self-host now (unlimited)