Open Source · MIT
PRIVATE BETA

Email infrastructure
you actually own.

Send and receive across every domain from one inbox. SPF, DKIM, DMARC, and MX records are auto-configured, removing the monthly per-seat DNS tax.

Get started free →Self-host on GitHubSign in
mailengine - live event stream
2026-06-20 09:41:02 RECV support@acme.com ← sara@example.com "Re: account upgrade"
2026-06-20 09:41:03 SEND noreply@acme.com → 2,841 recipients "Weekly digest"
2026-06-20 09:41:05 DLVR hello@acme.io "Your invoice is ready" · delivered
2026-06-20 09:41:07 RECV hello@acme.io ← eng@github.com "New deploy: mailengine/api"
2026-06-20 09:41:09 waiting for next event
OPEN SOURCE

The code is public.
The hosting is handled.

mailengine is MIT-licensed, allowing you to read, fork, and audit every line. Run it yourself on your own Cloudflare account or let us handle the hosting for you.

Self-host
Deploy to your own Cloudflare account. Free forever, you control the data.
View on GitHub →
Managed cloud
Plug and play. We handle deployments, uptime, and DNS. Cancel anytime.
Start free →
MX + DNS
Auto-configure SPF, DKIM, DMARC, MTA-STS in one click via Cloudflare API.
UNIFIED INBOX
Every domain, every alias in one place. j/k to navigate, c to compose.
REST API
POST /emails and you're done. Webhooks for every delivery event.
NO RELAY FEE
Force Cloudflare nameservers once, email is free. No per-seat DNS cost.
TEAM INBOXES
Shared mailboxes with RBAC. Assign threads, leave internal notes.
WORKFLOWS
No-code rules: label, forward, auto-reply, webhook. Or write your own.
MANAGED CLOUD PRICINGAll plans include unlimited inbound
Starter
$19/mo
✓3 domains
✓3 seats
✓10k emails/mo
POPULAR
Growth
$49/mo
✓10 domains
✓10 seats
✓100k emails/mo
Scale
$129/mo
✓Unlimited
✓25 seats
✓1M emails/mo
mailengine - Open Source Email API & Shared Inbox for Developers