# Haraka vs Postal

| Attribute | Haraka | Postal |
|---|---|---|
| **Vioscale score** | 55.8 (31% (low)) | 9 (4% (low)) |
| activity.commits_last_30d | 3 | 0 |
| adoption.dependent_repos | 22 | - |
| adoption.github_stars | 5,613 | 160 |
| deployment.options | `{"on_prem":true,"self_hosted":true}` | - |
| description.long | A free, open-source SMTP server written in Node.js that efficiently handles thousands of concurrent email connections and allows developers to extend functionality through a modular plugin system written in JavaScript. | - |
| features.capabilities | `{"smtp_relay":true,"deployment_model":"self_host","inbound_email_parsing":true}` | - |
| language.primary | JavaScript | Shell |
| license.spdx | MIT | MIT |
| platform.support | `{"cli":true}` | - |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://haraka.github.io","retrievedAt":"2026-08-21T12:43:50.604Z"}` | - |
| pricing.free_tier | yes | - |
| pricing.model | commercial | commercial |
| pricing.price_level | free | - |
| pricing.transparent | yes | - |
| release.cadence_days | 40 | - |
| release.history | `[{"url":"https://github.com/haraka/Haraka/releases/tag/v3.3.3","date":"2026-08-04T20:10:53Z","type":"stable","version":"v3.3.3"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.3.2","date":"2026-07-21T04:50:50Z","type":"stable","version":"v3.3.2"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.3.1","date":"2026-06-12T22:48:11Z","type":"stable","version":"v3.3.1"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.2.1","date":"2026-05-25T14:51:46Z","type":"stable","version":"v3.2.1"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.2.0","date":"2026-05-24T20:49:44Z","type":"stable","version":"v3.2.0"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.1.7","date":"2026-05-20T05:28:41Z","type":"stable","version":"v3.1.7"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.1.6","date":"2026-05-15T16:35:46Z","type":"stable","version":"v3.1.6"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.1.5","date":"2026-04-02T16:13:38Z","type":"stable","version":"v3.1.5"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.1.4","date":"2026-03-30T20:33:23Z","type":"stable","version":"v3.1.4"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.1.3","date":"2026-02-20T23:06:24Z","type":"stable","version":"v3.1.3"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.1.2","date":"2026-01-10T00:47:23Z","type":"stable","version":"v3.1.2"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.1.1","date":"2025-05-19T20:16:54Z","type":"stable","version":"v3.1.1"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.1.0","date":"2025-03-28T03:29:34Z","type":"stable","version":"v3.1.0"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.0.5","date":"2024-10-01T21:02:42Z","type":"stable","version":"v3.0.5"},{"url":"https://github.com/haraka/Haraka/releases/tag/3.0.4","date":"2024-08-22T00:12:38Z","type":"stable","version":"3.0.4"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.0.3","date":"2024-02-08T06:53:10Z","type":"stable","version":"v3.0.3"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.0.2","date":"2023-06-16T21:10:53Z","type":"stable","version":"v3.0.2"},{"url":"https://github.com/haraka/Haraka/releases/tag/v3.0.1","date":"2023-01-19T22:59:23Z","type":"stable","version":"v3.0.1"},{"url":"https://github.com/haraka/Haraka/releases/tag/3.0.0","date":"2023-01-06T18:09:52Z","type":"stable","version":"3.0.0"},{"url":"https://github.com/haraka/Haraka/releases/tag/2.8.28","date":"2021-10-15T06:14:52Z","type":"stable","version":"2.8.28"}]` | - |
| security.scorecard | 6.8 | - |
| security.vulnerabilities | `{"count":2,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=Haraka&per_page=100","last_12m":1,"max_severity":"CRITICAL"}` | - |

## Capabilities (Email Delivery Infrastructure)

| Capability | Haraka | Postal |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Deployment model | Self host | - |
| Rest API sending | - | - |
| Smtp relay | ✓ | - |
| Inbound email parsing | ✓ | - |
| Dedicated ip available | - | - |
| Bounce complaint handling | - | - |
| Open click tracking | - | - |
| Marketing template builder | - | - |
| Webhook event streaming | - | - |
| HIPAA compliant | - | - |
| SOC2 type ii | - | - |
| ISO 27001 | - | - |
| Pricing model | - | - |

*Source: Vioscale. Generated 2026-09-01T17:09:25.293Z. "-" = undocumented, not absent.*