Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-09-16 21:38 UTC

postalserver / postal

📮 A fully featured open source mail delivery platform for incoming & outgoing e-mail

Ruby · HamlMIT★ 16,812 stars⑂ 1,287 forkssince Apr 2017View on GitHub ↗
KindNetwork servicehow this is determined
#ruby#mail#smtp#postal#mail-server

postalserver/postal holds a health index of 78 out of 100, placing it in the Good band. It scores highest on Community & Adoption (85/100) and lowest on AI Readiness (43/100). It was last updated 1 day ago. A single contributor accounts for most of its recent work.

78
overall / 100
Good

Software health index

Metrics are grouped into weighted categories on one standardized 1–100 scale. Overall starts as their weighted mean, calibrated against the distribution of the public record so bands carry percentile meaning; when public evidence triggers the High-Risk Jurisdiction Policy, the rating is adjusted and receives an At Risk ceiling of 34.

78
Exceptional93-100The record's top tier (≈ top 5%); essentially all checked criteria met
Excellent80-92Strong across the board; minor gaps
Good65-79Healthy; gaps are limited and manageable
Moderate50-64Acceptable with notable gaps; review recommended
Weak35-49Material weaknesses across several areas
At Risk20-34Significant weaknesses; adoption warrants caution
Critical1-19Severe problems (abandoned, single-maintainer, no hygiene)
VitalityCommunity &AdoptionSustainability &GovernanceEngineeringQualitySecurityAI Readiness

Score profile

Each axis is a category. The shape matters more than the average — a healthy subject fills the whole shape, while a spike-and-crater profile means strength in one dimension is masking risk in another.

The weighted overall 67 is calibrated to 78 on the published index scale (record calibration 2026-08-02).

Ownership

PostalOrganization · verified domain
458 followers13 public repossince Nov 2019

This repository is backed by an organization — shared, accountable stewardship that can outlive any single maintainer.

Metrics by category

Vitality

Is the project alive — is code being written and are releases shipping?

68Good · 21% of overall

Development activity

58Moderate
How it's scored
36/36Push recency — last push 1 days ago
3.5/36Commit cadence — 5/52 weeks with commits
13/18Commit volume — 27 commits in the last year
5/10OpenSSF Scorecard: Maintained — 2 commit(s) and 4 issue activity found in the last 90 days -- score normalized to 5
Inputs used
commits_last_year27
human_commit_share0.84
days_since_last_push1
active_weeks_last_year5

Release discipline

82Excellent
How it's scored
27/27Ships releases — 30 releases published
27/36Release recency — latest release 105 days ago
19.8/27Release cadence — a release every ~90.2 days
0/10OpenSSF Scorecard: Signed-Releases — no data
Inputs used
releases_count30
latest_release_tag3.3.7
releases_from_tagsno
days_since_latest_release105
mean_days_between_releases90.2
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Signed-Releases. Remaining weights renormalized.

Community & Adoption

Does the project have users, downloads, attention, and a welcoming setup for contributors?

85Excellent · 17% of overall

Popularity & adoption

98Exceptional
How it's scored
60/60Stars — 16,812 stars
25/25Forks — 1,287 forks
13/15Watchers — 216 watchers
Inputs used
forks1,287
stars16,812
watchers216
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history

Community health

70Good
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (MIT)
18/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges0
has_contributingyes
has_issue_templateno
has_code_of_conductno
readme_badge_services—
has_pull_request_templateno

Sustainability & Governance

Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?

60Moderate · 23% of overall

Maintainer resilience (bus factor)

32At Risk
How it's scored
9/54Bus factor — 1 contributor(s) cover half of all commits
3.9/22.5Commit distribution — top contributor authored 82% of commits
13.5/13.5Contributor breadth — 43 contributors
6/10OpenSSF Scorecard: Contributors — project has 2 contributing companies or organizations -- score normalized to 6
Inputs used
bus_factor1
contributors_sampled43
top_contributor_share0.825

Issue & PR responsiveness

63Moderate
How it's scored
40.8/42Issue resolution — 97% of issues closed
12.6/30PR acceptance — 128/304 decided PRs merged
6.5/13Newcomer PR acceptance — 2/4 first-time contributors' PRs merged in 30d
3/15OpenSSF Scorecard: Code-Review — Found 7/26 approved changesets -- score normalized to 2
Inputs used
merged_prs128
open_issues49
closed_issues1,636
prs_merged_7d2
prs_decided_7d3
prs_merged_30d2
prs_decided_30d4
issue_closed_ratio0.971
closed_unmerged_prs176
first_time_authors_30d3
first_time_prs_merged_30d2
first_time_prs_decided_30d4

Ownership & stewardship

89Excellent
How it's scored
30/30Ownership backing — organization-owned
20/20Verified domain
19.1/25Owner reach — 458 followers of postalserver
20.3/25Track record — 13 public repos, account ~6 yr old
Inputs used
followers458
owner_typeOrganization
is_verifiedyes
owner_loginpostalserver
public_repos13
account_age_days2,487

Engineering Quality

Are baseline engineering and documentation practices in place?

78Good · 19% of overall

Engineering practices

70Good
How it's scored
24/24CI workflows — 2 workflow(s)
24/24Tests present
16/16Linter config — .rubocop.yml
0/9.6Pre-commit hooks
0/6.4.editorconfig
6/20OpenSSF Scorecard: CI-Tests — 4 out of 12 merged PRs checked by a CI test -- score normalized to 3
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configyes
has_precommit_configno

Documentation

90Excellent
How it's scored
30/30README
25/25Documentation directory
15/15Documentation / homepage site — https://postalserver.io
10/10Repository description
10/10Topics — 5 topics
0/10Wiki
Inputs used
topicsruby, mail, smtp, postal, mail-server
has_wikino
homepagehttps://postalserver.io
docs_sitehttps://postalserver.io
has_readmeyes
has_docs_diryes
has_descriptionyes

Security

Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?

51Moderate · 16% of overall

Security posture

52Moderate
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
0/7.5Branch-Protection — no data
0.8/2.5CI-Tests — 4 out of 12 merged PRs checked by a CI test -- score normalized to 3
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
1.5/7.5Code-Review — Found 7/26 approved changesets -- score normalized to 2
1.5/2.5Contributors — project has 2 contributing companies or organizations -- score normalized to 6
10/10Dangerous-Workflow — no dangerous workflow patterns detected
7.5/7.5Dependency-Update-Tool — update tool detected
0/5Fuzzing — project is not fuzzed
2.5/2.5License — license file detected
3.8/7.5Maintained — 2 commit(s) and 4 issue activity found in the last 90 days -- score normalized to 5
5/5Packaging — packaging workflow detected
0/5Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
1.5/5SAST — SAST tool is not run on all commits -- score normalized to 3
5/5Security-Policy — security policy file detected
0/7.5Signed-Releases — no data
0/7.5Token-Permissions — detected GitHub workflow tokens with excessive permissions
0/7.5Vulnerabilities — 43 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated16
scorecard_versionv5.5.0
checks_inconclusive2
scorecard_aggregate5.2
Excluded from scoring (no data or not applicable): Branch-Protection, Signed-Releases. Remaining weights renormalized.

Dependency advisories

46Weak
How it's scored
8.7/35Direct dependencies free of known advisories — 5 affected: jwt 2.8.1 (high 7.4), puma 7.0.4 (high 7.5), bcrypt 3.1.20 (moderate 6.7), +2 more
0/25Indirect dependencies free of known advisories — transitive set not separable from development and test dependencies in this scope
26/40No advisories left outstanding — 3 advisory-carrying package(s) unaddressed past 90 days; oldest published 181 days ago
Inputs used
sourceosv
advisories43
affected_packages17
assessed_packages162
unassessed_packages0
affected_by_severitycritical 1, high 8, moderate 6, low 2
direct_affected_packages5
Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories. Remaining weights renormalized. Matched 162 resolved dependencies against OSV. This repository publishes no package the index resolves, so the repository dependency graph was assessed instead. That graph mixes development and test pins with shipped dependencies, so only the declared runtime dependencies are scored; transitive findings are reported as context and excluded from the score. Reachability is not analyzed.

AI Readiness

How well is the repo equipped to be developed and maintained with AI coding agents? Carries a deliberately small weight (4%): agent tooling is a real maintenance signal, but a repository with none can still reach 100/100.

43Weak · 4% of overall

Agent context & guidance

40Weak
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
40/40Legible commit history — 84 of 84 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url—
legible_history_share1
agent_instruction_files—
agent_instruction_max_bytes—

Verify loop (build / test / typecheck)

43Weak
How it's scored
0/18One-command bootstrap
22/22Automated tests
11/11Lint / format config — .rubocop.yml
0/11Static type checking
10/10Reproducible environment — Dockerfile, lockfile
0/10Demonstrated agent practice — no agent-authored commits among the last 100
0/8Automated maintenance — no automated dependency updates observed
0/10OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
Inputs used
has_nixno
has_testsyes
lockfilesGemfile.lock
has_dockerfileyes
typed_languageno
bootstrap_files—
has_devcontainerno
has_linter_configyes
typecheck_configs—
agent_commit_share0
toolchain_manifests—
dependency_bot_commit_share0

Code legibility for models

55Moderate
How it's scored
0/45Type-checkable code — Ruby without a type-check config
55/55Manageable file sizes — 0/293 source files over 60KB
Inputs used
primary_languageRuby
largest_source_bytes23,325
source_files_sampled293
oversized_source_files0

Machine-readable interfaces

40Weak
How it's scored
0/40API schema (OpenAPI/GraphQL/proto)
0/20MCP server
40/40Runnable examples — examples
Inputs used
example_dirsexamples
has_mcp_signalno
api_schema_files—
interfaces_expected_ofnetwork-service

Key facts

16,812GitHub stars
43contributors
27commits, last 12 months
1days since last push
30releases
1bus factor
49open issues
RubyGemspackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token

More detail

Star and fork history 0 ★ / 1,287 ⇿
0Stars
1,287Forks
30Releases

When each star and fork was added, collected from GitHub and bucketed by day. Cumulative growth sits directly above the daily additions it is made of, so the two read against each other: steady organic accretion looks nothing like an abrupt, short-lived burst. Where that difference is measurable, it is reported as growth authenticity.

Only the most recent history is shown — this repository exceeds the collection window, so the earliest history is not captured.

2004006008001,0001,2001,4001,287102018-022022-052026-09
Major 2Minor 6Patch 21

Each point covers 8 days.

OpenSSF Scorecard 5.2 / 10
5.2aggregate

Independent, tool-agnostic security assessment from the open-source OpenSSF Scorecard. Each check rewards a security practice, not a specific vendor's tool. Checks Scorecard could not determine are marked n/a and excluded from the security score (never counted as zero).Scorecard v5.5.0 · 2026-09-16 21:38 UTC

10Binary-Artifactsno binaries found in the repo
n/aBranch-Protectioninternal error: error during branchesHandler.setup: internal error: some github tokens can't read classic branch protection rules: https://github.com/ossf/scorecard-action/blob/main/docs/authentication/fine-grained-auth-token.md
3CI-Tests4 out of 12 merged PRs checked by a CI test -- score normalized to 3
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
2Code-ReviewFound 7/26 approved changesets -- score normalized to 2
6Contributorsproject has 2 contributing companies or organizations -- score normalized to 6
10Dangerous-Workflowno dangerous workflow patterns detected
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
5Maintained2 commit(s) and 4 issue activity found in the last 90 days -- score normalized to 5
10Packagingpackaging workflow detected
0Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
3SASTSAST tool is not run on all commits -- score normalized to 3
10Security-Policysecurity policy file detected
n/aSigned-Releasesno releases found
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
0Vulnerabilities43 existing vulnerabilities detected
Direct dependencies 36
RegistryPackageVersion constraintManifest
RubyGemsabbrev—Gemfile
RubyGemsauthie—Gemfile
RubyGemsautoprefixer-rails—Gemfile
RubyGemsbcrypt—Gemfile
RubyGemschronic—Gemfile
RubyGemsdomain_name—Gemfile
RubyGemsdotenv—Gemfile
RubyGemsdynamic_form—Gemfile
RubyGemsexecjs~> 2.7Gemfile
RubyGemsgelf—Gemfile
RubyGemshaml—Gemfile
RubyGemshashie—Gemfile
RubyGemshighline—Gemfile
RubyGemsjwt—Gemfile
RubyGemskaminari—Gemfile
RubyGemsklogger-logger—Gemfile
RubyGemskonfig-config~> 3.0Gemfile
RubyGemslogger—Gemfile
RubyGemsmail—Gemfile
RubyGemsmutex_m—Gemfile
RubyGemsmysql2—Gemfile
RubyGemsnifty-utils—Gemfile
RubyGemsnilify_blanks—Gemfile
RubyGemsnio4r—Gemfile
RubyGemsostruct—Gemfile
RubyGemsprometheus-client—Gemfile
RubyGemspuma—Gemfile
RubyGemsrackup—Gemfile
RubyGemsrails= 7.1.6Gemfile
RubyGemsresolv—Gemfile
RubyGemssecure_headers—Gemfile
RubyGemssentry-rails—Gemfile
RubyGemsturbolinks~> 5Gemfile
RubyGemswebrick—Gemfile
RubyGemsomniauth_openid_connect—Gemfile
RubyGemsomniauth-rails_csrf_protection—Gemfile
All dependencies 162

Full resolved dependency set from the GitHub dependency graph: 36 direct and 126 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
RubyGemsabbrev0.1.2direct
RubyGemsauthie5.0.0direct
RubyGemsautoprefixer-rails10.4.13.0direct
RubyGemsbcrypt3.1.20direct
RubyGemschronic0.10.2direct
RubyGemsdomain_name0.6.20240107direct
RubyGemsdotenv3.0.2direct
RubyGemsdynamic_form1.2.0direct
RubyGemsexecjs2.7.0direct
RubyGemsgelf3.1.0direct
RubyGemshaml6.3.0direct
RubyGemshashie5.0.0direct
RubyGemshighline2.1.0direct
RubyGemsjwt2.8.1direct
RubyGemskaminari1.2.2direct
RubyGemsklogger-logger1.4.0direct
RubyGemskonfig-config3.0.0direct
RubyGemslogger1.7.0direct
RubyGemsmail2.9.0direct
RubyGemsmutex_m0.3.0direct
RubyGemsmysql20.5.6direct
RubyGemsnifty-utils1.1.7direct
RubyGemsnilify_blanks1.4.0direct
RubyGemsnio4r2.7.5direct
RubyGemsomniauth-rails_csrf_protection1.0.1direct
RubyGemsomniauth_openid_connect0.7.1direct
RubyGemsostruct0.6.3direct
RubyGemsprometheus-client4.2.2direct
RubyGemspuma7.0.4direct
RubyGemsrackup2.3.1direct
RubyGemsrails7.1.6direct
RubyGemsresolv0.6.2direct
RubyGemssecure_headers6.5.0direct
RubyGemssentry-rails5.16.1direct
RubyGemsturbolinks5.2.1direct
RubyGemswebrick1.9.1direct
RubyGemsactioncable7.1.6indirect
RubyGemsactionmailbox7.1.6indirect
RubyGemsactionmailer7.1.6indirect
RubyGemsactionpack7.1.6indirect
RubyGemsactiontext7.1.6indirect
RubyGemsactionview7.1.6indirect
RubyGemsactivejob7.1.6indirect
RubyGemsactivemodel7.1.6indirect
RubyGemsactiverecord7.1.6indirect
RubyGemsactivestorage7.1.6indirect
RubyGemsactivesupport7.1.6indirect
RubyGemsaddressable2.8.6indirect
RubyGemsaes_key_wrap1.1.0indirect
RubyGemsannotate3.2.0indirect
RubyGemsast2.4.2indirect
RubyGemsattr_required1.0.2indirect
RubyGemsbase640.3.0indirect
RubyGemsbenchmark0.5.0indirect
RubyGemsbigdecimal4.1.2indirect
RubyGemsbindata2.5.0indirect
RubyGemsbuilder3.3.0indirect
RubyGemscgi0.5.1indirect
RubyGemscoffee-rails5.0.0indirect
RubyGemscoffee-script2.4.1indirect
RubyGemscoffee-script-source1.12.2indirect
RubyGemsconcurrent-ruby1.3.6indirect
RubyGemsconnection_pool3.0.2indirect
RubyGemscrack1.0.0indirect
RubyGemscrass1.0.6indirect
RubyGemsdatabase_cleaner-active_record2.2.2indirect
RubyGemsdatabase_cleaner-core2.0.1indirect
RubyGemsdate3.5.1indirect
RubyGemsdiff-lcs1.6.2indirect
RubyGemsdrb2.2.3indirect
RubyGemsemail_validator2.2.4indirect
RubyGemserb6.0.4indirect
RubyGemserubi1.13.1indirect
RubyGemsfactory_bot6.4.6indirect
RubyGemsfactory_bot_rails6.4.3indirect
RubyGemsfaraday2.9.0indirect
RubyGemsfaraday-follow_redirects0.3.0indirect
RubyGemsfaraday-net_http3.1.0indirect
RubyGemsffi1.15.5indirect
RubyGemsglobalid1.3.0indirect
RubyGemshashdiff1.1.0indirect
RubyGemsi18n1.14.8indirect
RubyGemsio-console0.8.2indirect
RubyGemsirb1.18.0indirect
RubyGemsjquery-rails4.5.1indirect
RubyGemsjson2.7.1indirect
RubyGemsjson-jwt1.16.6indirect
RubyGemskaminari-actionview1.2.2indirect
RubyGemskaminari-activerecord1.2.2indirect
RubyGemskaminari-core1.2.2indirect
RubyGemsloofah2.25.1indirect
RubyGemsmarcel1.2.1indirect
RubyGemsmini_mime1.1.5indirect
RubyGemsminitest6.0.6indirect
RubyGemsnet-http0.4.1indirect
RubyGemsnet-imap0.6.4indirect
RubyGemsnet-pop0.1.2indirect
RubyGemsnet-protocol0.2.2indirect
RubyGemsnet-smtp0.5.1indirect
RubyGemsnokogiri1.19.3indirect
RubyGemsomniauth2.1.2indirect
RubyGemsopenid_connect2.3.0indirect
RubyGemsparallel1.22.1indirect
RubyGemsparser3.2.1.1indirect
RubyGemspp0.6.3indirect
RubyGemsprettyprint0.2.0indirect
RubyGemsprism1.9.0indirect
RubyGemspsych5.4.0indirect
RubyGemspublic_suffix5.0.4indirect
RubyGemsracc1.8.1indirect
RubyGemsrack3.2.6indirect
RubyGemsrack-oauth22.2.1indirect
RubyGemsrack-protection4.1.1indirect
RubyGemsrack-session2.1.2indirect
RubyGemsrack-test2.2.0indirect
RubyGemsrails-dom-testing2.3.0indirect
RubyGemsrails-html-sanitizer1.7.0indirect
RubyGemsrailties7.1.6indirect
RubyGemsrainbow3.1.1indirect
RubyGemsrake13.4.2indirect
RubyGemsrdoc7.2.0indirect
RubyGemsregexp_parser2.7.0indirect
RubyGemsreline0.6.3indirect
RubyGemsrexml3.4.4indirect
RubyGemsrouge4.2.0indirect
RubyGemsrspec3.13.1indirect
RubyGemsrspec-core3.13.5indirect
RubyGemsrspec-expectations3.13.5indirect
RubyGemsrspec-mocks3.13.5indirect
RubyGemsrspec-rails6.1.1indirect
RubyGemsrspec-support3.13.6indirect
RubyGemsrubocop1.48.1indirect
RubyGemsrubocop-ast1.27.0indirect
RubyGemsrubocop-rails2.18.0indirect
RubyGemsruby-progressbar1.13.0indirect
RubyGemssass-rails6.0.0indirect
RubyGemssassc2.4.0indirect
RubyGemssassc-rails2.1.2indirect
RubyGemssecurerandom0.4.1indirect
RubyGemssentry-ruby5.16.1indirect
RubyGemsshoulda-matchers6.1.0indirect
RubyGemssprockets4.2.0indirect
RubyGemssprockets-rails3.4.2indirect
RubyGemsstringio3.2.0indirect
RubyGemsswd2.0.3indirect
RubyGemstemple0.10.3indirect
RubyGemsthor1.5.0indirect
RubyGemstilt2.3.0indirect
RubyGemstimecop0.9.8indirect
RubyGemstimeout0.6.1indirect
RubyGemstsort0.2.0indirect
RubyGemsturbolinks-source5.2.0indirect
RubyGemstzinfo2.0.6indirect
RubyGemsuglifier4.2.0indirect
RubyGemsunicode-display_width2.4.2indirect
RubyGemsuri1.0.3indirect
RubyGemsvalidate_url1.0.15indirect
RubyGemswebfinger2.1.3indirect
RubyGemswebmock3.20.0indirect
RubyGemswebsocket-driver0.8.0indirect
RubyGemswebsocket-extensions0.1.5indirect
RubyGemszeitwerk2.8.2indirect
Dependency advisories 17

This repository publishes no package the index resolves, so its own dependency graph was assessed — 162 packages, which also include development and test pins that never ship: 17 carry known advisories, of which 5 are direct.

PackageVersionRelationSeverityAdvisoriesFixed in
activestorage7.1.6indirectcritical68.1.3.1
jwt2.8.1directhigh13.2.0
puma7.0.4directhigh28.0.2
activesupport7.1.6indirecthigh38.1.2.1
addressable2.8.6indirecthigh12.9.0
concurrent-ruby1.3.6indirecthigh31.3.7
faraday2.9.0indirecthigh32.14.3
uri1.0.3indirecthigh11.0.4
websocket-driver0.8.0indirecthigh40.8.2
bcrypt3.1.20directmoderate13.1.22
mail2.9.0directmoderate12.9.1
secure_headers6.5.0directmoderate17.3.0
loofah2.25.1indirectmoderate32.25.2
net-imap0.6.4indirectmoderate30.6.4.1
nokogiri1.19.3indirectmoderate81.19.4
actionview7.1.6indirectlow18.1.2.1
rails-html-sanitizer1.7.0indirectlow11.7.1

An advisory means the version recorded in the dependency graph falls inside an advisory’s affected range. Reachability is not analysed, and the graph includes development and test pins — a finding may concern tooling rather than shipped software.

Raw JSON report machine-readable

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Scores are signals, not warranties. They reflect publicly visible practices on GitHub — not a code audit, and not a security guarantee.

Missing data is excluded and weights renormalized, never scored as zero. Methodology is versioned and open: metrics v2.10.0, schema v0.34.0 — full methodology · metrics wiki.

How one result sits in the wider record: aggregate statistics.