Self-hosted email gateway between your apps and a transactional mail provider (Postmark, Resend, Mailgun, AWS SES, or outbound-SMTP). Three ingress shapes (HTTP form, HTTP API, SMTP). One Docker container, one TOML config.
The first open source email gateway for AI agents — SPF/DKIM verified inbound, HMAC-signed delivery, webhook + WebSocket fan-out, CLI + SDKs + MCP
A Cloudflare Workers email gateway with multi-SMTP support and a unified HTTP sending API.
Proxmox Mail Gateway inside a Docker container.
Mobile-first admin console for Proxmox Mail Gateway (PMG) - quarantine management and Tracking Center, built for admins who need it on their phone.
Python SDK for the Proxmox Mail Gateway (PMG) API.
PHP SDK for the Proxmox Mail Gateway (PMG) API.
Pier — the broker (coordinator) reference implementation of the KOTVA standard: swappable, self-hostable, content-blind relays, adapters and gateways with a no-token billing model.
TypeScript SDK for the Proxmox Mail Gateway (PMG) API.
Testing email defenses end to end: legitimate and malicious messages sent through a Cisco ASA and ESA to verify HAT, RAT, and content filtering work as intended
Kotlin SDK for the Proxmox Mail Gateway (PMG) API.
Rust SDK for the Proxmox Mail Gateway (PMG) API.
Go SDK for the Proxmox Mail Gateway (PMG) API.
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