{"adoption": {"forks": 1180, "observed_at": "2026-08-28T04:11:14.828857+00:00", "stars": 16138}, "canonical_url": "https://ross.abutalabs.com/products/mailhog", "card": {"archived": false, "artifact_type": "application", "description": "Web and API based SMTP testing", "domain": ["developer-tools", "email", "testing", "self-hosted"], "enriched": true, "function": ["email", "http-server", "web-framework", "testing"], "health_score": 20, "homepage": null, "language": "Go", "license": "MIT", "license_family": "permissive", "maturity": "maintenance", "member_repos": ["mailhog/MailHog"], "name": "mailhog/MailHog", "platform": ["windows", "go", "cross-platform"], "pushed_at": "2024-02-13T18:38:41+00:00", "repo": "mailhog/MailHog", "stars": 16138, "tags": ["smtp-testing", "fake-smtp", "email-catcher", "web-ui", "-api", "sendmail", "linux", "macos", "docker"], "topics": [], "urls": [], "use_cases": ["test email sending in local development", "capture emails from my app without a real SMTP server", "inspect outgoing emails in a web UI", "retrieve test emails via a JSON API", "test SMTP failure scenarios with chaos monkey", "release captured test emails to a real mail server"], "what_it_is": "MailHog is an email testing tool that runs a fake SMTP server and exposes a web UI and JSON API for inspecting outgoing messages. It can optionally release captured messages to real SMTP servers and supports in-memory, MongoDB, or file-based storage.", "when_to_avoid": ["you need a production mail transfer agent or actual email delivery", "you require actively developed features or frequent updates", "you need a hosted email testing service with team sharing"], "when_to_choose": ["you need a lightweight, install-free fake SMTP server for development or CI", "you want a web UI plus API to inspect and manage test emails", "you need to simulate SMTP failures or auth during testing"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/mailhog", "repo": "mailhog/MailHog", "role": "main", "score": 23}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:11:14.828857+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-29T17:05:13.477243+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "35c7bc3237730555e255bcf64b20bdef000db2f7b785044f6c085a3ecdfd46f1", "fetched_at": "2026-08-28T04:11:14.828857+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mailhog/MailHog"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:11:14.828857+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-29T17:05:13.477243+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "35c7bc3237730555e255bcf64b20bdef000db2f7b785044f6c085a3ecdfd46f1", "fetched_at": "2026-08-28T04:11:14.828857+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mailhog/MailHog"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-29T17:05:13.477243+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "35c7bc3237730555e255bcf64b20bdef000db2f7b785044f6c085a3ecdfd46f1", "fetched_at": "2026-08-28T04:11:14.828857+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mailhog/MailHog"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:11:14.828857+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:11:14.828857+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:11:14.828857+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-29T17:05:13.477243+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "35c7bc3237730555e255bcf64b20bdef000db2f7b785044f6c085a3ecdfd46f1", "fetched_at": "2026-08-28T04:11:14.828857+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mailhog/MailHog"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:11:14.828857+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:11:14.828857+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-29T17:05:13.477243+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "35c7bc3237730555e255bcf64b20bdef000db2f7b785044f6c085a3ecdfd46f1", "fetched_at": "2026-08-28T04:11:14.828857+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mailhog/MailHog"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:11:14.828857+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:11:14.828857+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:11:14.828857+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-29T17:05:13.477243+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "35c7bc3237730555e255bcf64b20bdef000db2f7b785044f6c085a3ecdfd46f1", "fetched_at": "2026-08-28T04:11:14.828857+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mailhog/MailHog"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:11:14.828857+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:11:14.828857+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-29T17:05:13.477243+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "35c7bc3237730555e255bcf64b20bdef000db2f7b785044f6c085a3ecdfd46f1", "fetched_at": "2026-08-28T04:11:14.828857+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mailhog/MailHog"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-29T17:05:13.477243+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "35c7bc3237730555e255bcf64b20bdef000db2f7b785044f6c085a3ecdfd46f1", "fetched_at": "2026-08-28T04:11:14.828857+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mailhog/MailHog"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-29T17:05:13.477243+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "35c7bc3237730555e255bcf64b20bdef000db2f7b785044f6c085a3ecdfd46f1", "fetched_at": "2026-08-28T04:11:14.828857+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mailhog/MailHog"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-29T17:05:13.477243+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "35c7bc3237730555e255bcf64b20bdef000db2f7b785044f6c085a3ecdfd46f1", "fetched_at": "2026-08-28T04:11:14.828857+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mailhog/MailHog"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 0, "longevity": 100, "rhythm": 8}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": [], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 4522, "days_push": 932, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 23, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}