📮 A fully featured open source mail delivery platform for incoming & outgoing e-mail
Sends and receives mail over SMTP and an HTTP API, with delivery tracking and webhooks.
Hosted email delivery service for transactional and marketing mail, over SMTP and an HTTP API. Twilioのクローズドな製品です。
| ツール | 置き換えの度合い | スター | ライセンス | 利用条件 | セルフホスト | 言語 | 最新リリース | 最終プッシュ |
|---|---|---|---|---|---|---|---|---|
| Postal | 完全な置き換え | 17k | MIT | オープンソース | 可 | Ruby | 3.3.7 | 2026-10-06 |
| useSend | 完全な置き換え | 4.7k | AGPL-3.0 | オープンソース | 可 | TypeScript | v1.9.8 | 2026-09-08 |
| Haraka | 部分的 | 5.6k | MIT | オープンソース | 可 | JavaScript | v3.3.4 | 2026-10-03 |
| Plunk | 部分的 | 5.5k | AGPL-3.0 | オープンソース | 可 | TypeScript | v0.15.0 | 2026-10-06 |
| Hyvor Relay | 部分的 | 911 | AGPL-3.0 | オープンソース | 可 | PHP | 0.0.46 | 2026-09-30 |
代替5件
📮 A fully featured open source mail delivery platform for incoming & outgoing e-mail
Sends and receives mail over SMTP and an HTTP API, with delivery tracking and webhooks.
Open source alternative to Resend, Sendgrid, Postmark etc.
Transactional and marketing email over a REST API and SMTP, with webhooks and delivery stats, sent through Amazon SES.
A fast, highly extensible, and event driven SMTP server
A plugin-based SMTP server in Node.js for high-volume inbound and outbound mail, without an HTTP API or tracking dashboard.
The Open-Source Email Platform
Transactional email over an HTTP API next to campaigns and automations, sent through Amazon SES.
📨 Open-Source Email API for Developers. Cloud & Self-hosted Alternative to SES, Mailgun, SendGrid.
Transactional sending over an HTTP API and SMTP with bounce handling and webhooks; no marketing campaigns.