# MailHog vs Mailpit

| Attribute | MailHog | Mailpit |
|---|---|---|
| **Vioscale score** | 42.8 (19% (low)) | 39.6 (23% (low)) |
| activity.commits_last_30d | 0 | 36 |
| adoption.dependent_repos | 11 | 0 |
| adoption.github_stars | 16,138 | 10,208 |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | MailHog intercepts and stores SMTP messages during development, providing a web UI and JSON API for viewing and managing test emails, with the option to forward messages to real mail servers. | A minimal email testing tool that intercepts SMTP traffic and provides a web UI plus REST API for validating and testing email functionality during development. |
| features.capabilities | `{"open_source":true,"sms_testing":false,"api_assertions":true,"spam_score_check":false,"ci_cd_integration":false,"rendering_preview":true,"multi_user_inboxes":true,"production_sending_addon":true,"blocklist_deliverability_check":false}` | - |
| integrations.count | - | 1 |
| integrations.list | - | `[{"name":"SpamAssassin"}]` |
| language.primary | Go | Go |
| license.spdx | MIT | MIT |
| platform.support | `{"mac":true,"web":true,"linux":true}` | `{"web":true}` |
| pricing.model | commercial | - |
| release.cadence_days | 11 | 11 |
| release.history | `[{"url":"https://github.com/mailhog/MailHog/releases/tag/v1.0.1","date":"2020-08-11T18:04:41Z","type":"stable","version":"v1.0.1"},{"url":"https://github.com/mailhog/MailHog/releases/tag/v1.0.0","date":"2017-04-16T23:36:18Z","type":"stable","version":"v1.0.0"},{"url":"https://github.com/mailhog/MailHog/releases/tag/v0.2.1","date":"2016-09-04T18:31:48Z","type":"stable","version":"v0.2.1"},{"url":"https://github.com/mailhog/MailHog/releases/tag/v0.2.0","date":"2016-03-20T17:23:21Z","type":"stable","version":"v0.2.0"},{"url":"https://github.com/mailhog/MailHog/releases/tag/v0.1.9","date":"2016-03-13T19:24:01Z","type":"stable","version":"v0.1.9"},{"url":"https://github.com/mailhog/MailHog/releases/tag/v0.1.8","date":"2015-10-06T20:29:59Z","type":"stable","version":"v0.1.8"},{"url":"https://github.com/mailhog/MailHog/releases/tag/v0.1.7","date":"2015-05-20T20:03:57Z","type":"stable","version":"v0.1.7"},{"url":"https://github.com/mailhog/MailHog/releases/tag/v0.1.6","date":"2015-03-14T10:01:38Z","type":"stable","version":"v0.1.6"},{"url":"https://github.com/mailhog/MailHog/releases/tag/v0.1.5","date":"2015-02-12T21:30:55Z","type":"stable","version":"v0.1.5"},{"url":"https://github.com/mailhog/MailHog/releases/tag/v0.1.4","date":"2015-02-12T20:57:47Z","type":"stable","version":"v0.1.4"},{"url":"https://github.com/mailhog/MailHog/releases/tag/v0.1.3","date":"2015-01-08T22:36:13Z","type":"stable","version":"v0.1.3"},{"url":"https://github.com/mailhog/MailHog/releases/tag/v0.1.2","date":"2015-01-08T21:17:03Z","type":"stable","version":"v0.1.2"},{"url":"https://github.com/mailhog/MailHog/releases/tag/v0.1.1","date":"2015-01-04T12:54:33Z","type":"stable","version":"v0.1.1"},{"url":"https://github.com/mailhog/MailHog/releases/tag/v0.1.0","date":"2014-12-27T13:50:55Z","type":"stable","version":"v0.1.0"},{"url":"https://github.com/mailhog/MailHog/releases/tag/0.09","date":"2014-12-24T13:40:49Z","type":"prerelease","version":"0.09"},{"url":"https://github.com/mailhog/MailHog/releases/tag/0.08","date":"2014-12-21T09:34:14Z","type":"prerelease","version":"0.08"},{"url":"https://github.com/mailhog/MailHog/releases/tag/0.07","date":"2014-11-18T08:10:22Z","type":"prerelease","version":"0.07"},{"url":"https://github.com/mailhog/MailHog/releases/tag/0.06","date":"2014-11-13T18:23:01Z","type":"prerelease","version":"0.06"},{"url":"https://github.com/mailhog/MailHog/releases/tag/0.05","date":"2014-11-01T22:51:22Z","type":"prerelease","version":"0.05"},{"url":"https://github.com/mailhog/MailHog/releases/tag/0.04","date":"2014-10-29T18:53:09Z","type":"prerelease","version":"0.04"}]` | `[{"url":"https://github.com/axllent/mailpit/releases/tag/v1.31.0","date":"2026-08-22T00:00:16Z","type":"stable","version":"v1.31.0"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.30.7","date":"2026-08-08T09:51:14Z","type":"stable","version":"v1.30.7"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.30.6","date":"2026-07-28T04:08:26Z","type":"stable","version":"v1.30.6"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.30.5","date":"2026-07-20T04:18:08Z","type":"stable","version":"v1.30.5"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.30.4","date":"2026-07-09T03:37:30Z","type":"stable","version":"v1.30.4"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.30.3","date":"2026-06-27T09:32:36Z","type":"stable","version":"v1.30.3"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.30.2","date":"2026-06-17T03:38:53Z","type":"stable","version":"v1.30.2"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.30.1","date":"2026-05-28T10:02:23Z","type":"stable","version":"v1.30.1"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.30.0","date":"2026-05-14T05:00:22Z","type":"stable","version":"v1.30.0"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.29.7","date":"2026-04-16T06:01:06Z","type":"stable","version":"v1.29.7"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.29.6","date":"2026-04-05T10:03:15Z","type":"stable","version":"v1.29.6"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.29.5","date":"2026-03-29T04:48:58Z","type":"stable","version":"v1.29.5"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.29.4","date":"2026-03-22T04:57:48Z","type":"stable","version":"v1.29.4"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.29.3","date":"2026-03-10T02:32:01Z","type":"stable","version":"v1.29.3"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.29.2","date":"2026-02-24T23:31:43Z","type":"stable","version":"v1.29.2"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.29.1","date":"2026-02-13T08:02:33Z","type":"stable","version":"v1.29.1"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.29.0","date":"2026-02-01T03:13:50Z","type":"stable","version":"v1.29.0"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.28.4","date":"2026-01-24T21:08:56Z","type":"stable","version":"v1.28.4"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.28.3","date":"2026-01-18T08:38:39Z","type":"stable","version":"v1.28.3"},{"url":"https://github.com/axllent/mailpit/releases/tag/v1.28.2","date":"2026-01-10T03:21:02Z","type":"stable","version":"v1.28.2"}]` |
| security.scorecard | 2.6 | - |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fmailhog%2FMailHog&per_page=100","last_12m":0,"max_severity":null}` | `{"count":13,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Faxllent%2Fmailpit&per_page=100","last_12m":13,"max_severity":"HIGH"}` |

## Capabilities (Email Testing Dev)

| Capability | MailHog | Mailpit |
|---|:--:|:--:|
| **Capabilities** |  |  |
| API assertions | ✓ | - |
| Rendering preview | ✓ | - |
| Spam score check | ✗ | - |
| Blocklist deliverability check | ✗ | - |
| SMS testing | ✗ | - |
| Production sending addon | ✓ | - |
| Ci cd integration | ✗ | - |
| Multi user inboxes | ✓ | - |
| Open source | ✓ | - |

*Source: Vioscale. Generated 2026-09-01T14:37:43.466Z. "-" = undocumented, not absent.*