forwardemail.net vs e2a
Email service platforms compared
forwardemail.net is a broad email service codebase for domain-based forwarding and hosted mail, with web, mail, calendar, and contact protocols. e2a is an email API and relay for applications and AI agents, focused on sending, inbound mailbox workflows, and agent replies.
forwardemail.net: Run a Privacy-Focused Email Service
Forward Email is a self-hostable email platform for domain-based email, forwarding, and sending, with support for IMAP, POP3, SMTP, CalDAV, and CardDAV. It suits teams that want control over their email service and can operate a multi-service deployment.
e2a: Email API for Applications and AI Agents
e2a provides an email API and relay for applications and AI agents. It supports transactional sending, inbound mailboxes, and agent replies, with optional human review and hosted or Docker-based deployment.
| forwardemail.net | e2a | |
|---|---|---|
| Language | JavaScript | Go |
| License | — | Apache-2.0 |
| Stars | 1.7k | 192 |
| Forks | 208 | 26 |
| Last analyzed | Oct 8, 2026 | Oct 4, 2026 |
Key differences
- forwardemail.net includes SMTP, IMAP, POP3, CalDAV, and CardDAV services; e2a provides an HTTP API and agent-oriented tools for email workflows.
- forwardemail.net is written in JavaScript, while e2a is written in Go.
- forwardemail.net's README identifies BUSL-1.1 AND MPL-2.0 terms; e2a is licensed under Apache-2.0.
- forwardemail.net documents deployment with Ansible and PM2 and local development with MongoDB and Redis; e2a supports Docker and PostgreSQL self-hosting or a managed service.
- forwardemail.net targets teams developing or operating a multi-service email platform; e2a targets application developers and AI agents that need to send, receive, and reply to email.
- e2a supports holding outbound messages for human approval; forwardemail.net's listed features focus on email, calendar, and contact services and their operation.
Choose forwardemail.net if you…
- need domain-based forwarding alongside hosted email and multiple mail protocols.
- want to develop or operate a broader email platform with calendar and contact services.
- need deployment guidance for operating service components with Ansible and PM2.
Choose e2a if you…
- need an email API and relay for applications or AI agents.
- want inbound mail workflows through polling, WebSockets, webhooks, or MCP tools.
- need optional human approval for outbound messages or a managed hosted service.
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This comparison is generated with AI from the OSRepos analyses of both projects. Always check each project's repository and documentation before choosing.