# Forward Email

**Canonical:** https://apis.io/providers/forward-email/  
**Website:** https://forwardemail.net/  
**APIs profiled:** 1

Forward Email provides free email forwarding for custom domains with an open-source, privacy‑focused service. It offers API access to manage domains, aliases, messages, calendars, contacts and webhooks, supports SMTP, IMAP, POP3, CalDAV and CardDAV, and includes features like encrypted SQLite mailboxes, DKIM, SPF, DMARC, and detailed analytics. The platform serves over 1.6 million domains, offers unlimited aliases, and provides SDKs and client apps for desktop, mobile and terminal environments.

## Kin Score — 60.1 / 100 (strong)

Scored 2026-10-31 under rubric 0.25.0.

| Facet | Score |
|---|---|
| Discoverability | 66.7 |
| Contract Quality | 71.7 |
| Contract Governance | 22.0 |
| Operational Transparency | 39.5 |
| Developer Ergonomics | 61.2 |
| Access Clarity | 65.8 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 30.4 (matched via fallback).

## Agent readiness — 33.2 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | derived |
| OpenAPI Examples | partial |
| Rate Limit Signal | no |
| Event Surface Described | derived |
| Agent Skills | unknown |
| Well Known Catalog | yes |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |
| Pagination Ratio | partial |
| Operation Distinctiveness | distinct |

## APIs (16)

- **Forward Email Account API** — Account management endpoints
- **Forward Email Aliases API** — Domain alias management endpoints
- **Forward Email Calendar Events API** — Alias calendar events management endpoints (CalDAV) >[!NOTE] > Unlike other API endpoints, these require [Authentication](#description/authentication) "username" equal to the al...
- **Forward Email Calendars API** — Alias calendars management endpoints (CalDAV) >[!NOTE] > Unlike other API endpoints, these require [Authentication](#description/authentication) "username" equal to the alias us...
- **Forward Email Contacts API** — Alias contacts management endpoints (CardDAV) >[!NOTE] >Unlike other API endpoints, these require Authentication "username" equal to the alias username and "password" equal to t...
- **Forward Email Domains API** — > [!TIP] > Domain endpoints with a domain's name <code>/v1/domains/:domain\_name</code> as their endpoint are interchangeable with a domain's ID <code>:domain\_id</code>. This m...
- **Forward Email Emails API** — Email management endpoints
- **Forward Email Encrypt API** — Encryption endpoints
- **Forward Email Folders API** — Alias folders management endpoints (IMAP/POP3) >[!TIP] > Folder endpoints with a folder's path <code>/v1/folders/:path</code> as their endpoint are interchangeable with a folder...
- **Forward Email Invites API** — Domain invite management endpoints
- **Forward Email Logs API** — Log management endpoints
- **Forward Email Members API** — Domain member management endpoints
- **Forward Email Messages API** — Alias messages management endpoints (IMAP/POP3) >[!NOTE] > Unlike other API endpoints, these require [Authentication](#description/authentication) "username" equal to the alias ...
- **Forward Email Push Tokens API** — Register and manage push notification tokens for APNs, FCM, UnifiedPush, and Web Push. Tokens are scoped to an alias and used to deliver notifications when the app is background...
- **Forward Email Sieve Scripts API** — Sieve script management endpoints >[!NOTE] > Sieve is a powerful email filtering language defined in RFC 5228. Scripts are executed on incoming mail to automatically organize, f...
- **Forward Email WebSockets API** — Real-time push notifications via WebSocket. Connect to the /v1/ws endpoint to receive live events. Authentication is optional: authenticated clients receive per-alias events (IM...

## MCP servers (1)

- **Forward Email MCP Server**

## Agentic access (1)

- **Forward Email Agentic Access** — 76 operations · 47 acting · 1 human-in-the-loop

## Security (3)

- **Forward Email Authentication** — http · 1 scheme
- **Forward Email Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC
- **Forward Email Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Forward Email Plans Pricing**

## Tags

Email Forwarding, Email Hosting, Open Source, API, Secure Email

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/forward-email/). Scores are computed from the provider's own public artifacts under a published rubric.