Bounces and suppressions
Track failed recipients, suppress repeat sends, and expose the status over JSON. This is bookkeeping, not sorcery.
Mailgun alternative
Stop renting email you can already run.
Most projects do not need a paid email relay for ordinary product mail. They need authenticated SMTP, a sane API surface, delivery logs, and a mailbox humans and agents can inspect. Envelope gives you that on top of your own mail server.
Mailgun made app email convenient. Now it is often just another bill.
Most products do not need a rented email platform to send receipts, login codes, notices, support replies, and workflow mail. They need authenticated SMTP, an API-shaped interface, logs, bounces, and a mailbox humans and agents can inspect.
Envelope starts with the part that should not be outsourced: your own mailbox and server. The delivery-management pieces — bounces, suppressions, complaints, webhooks, dashboards — are product features, not a permanent reason to hand the whole workflow to a relay.
Good fit today
- Small SaaS product email
- Internal tools
- Transactional notices
- Support/shared inbox automation
- Agent workflows that need mail state
The roadmap is not mysterious.
Webhooks and events
Emit delivery, reply, watch, rule, and draft events into your own app instead of a vendor console.
Local deliverability posture
Surface SPF, DKIM, DMARC, DNS, and reputation checks so teams can operate their own email with fewer blind spots.
Why teams switch
Lower cost
No per-message bill for mail your own infrastructure can handle.
Better control
Mail, drafts, replies, rules, and audit live with your mailbox, not a vendor dashboard.
Agent-ready
The same runtime that sends product mail can watch inboxes, extract OTPs, and route replies to agents.