New article: Gmail Postmaster Tools without the reputation ratings

[marmot7775]

Adds /articles/postmaster-tools, the sixth article, from the final text sent 2026-10-07 (saved in docs/history/article-postmaster-tools.md).

• Route, sitemap, first card on /articles/ with a new Gmail filter pill, and the page lists the header, footer, alias, tone, overflow and skip-link tests read.
• Short version box like the other five; source links to Google help 16594218, 14668346, 81126, 14229414, 3726730, the V2 API migration guide and Spam Resource (Aug 2026), pinned by a test.
• Three fact fixes after a check against the live pages: DNS records row added to the setup rows, 5.7.32 beside 4.7.32, and the 4.x.x/5.x.x rule scoped to the codes listed.
• Verdict table: API constants break at underscores (.dbis-table-api) so it fits 320px. Cache-bust follow-up commit.

Checked in Chromium at 320, 390 and 1280 in both themes: no sideways scroll, no console errors, in-page links land below the header.

🤖 Generated with Claude Code

Summary by CodeRabbit

• New Features
  • Added an article on Gmail Postmaster Tools V2, covering its compliance checklist, deliverability verdicts, sender requirements, bounce codes, and API changes.
  • Added the article to the articles listing with a Gmail filter and made it available as a dedicated page.

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ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: defaults
• Review profile: CHILL
• Plan: Advanced
• Run ID: 9d5dab6e-c3f3-40c0-8a07-1d549f2236c5

📥 Commits

Reviewing files that changed from the base of the PR and between 45ec7ab and ce2cbc7.

📒 Files selected for processing (24)

• docs/history/README.md
• docs/history/article-postmaster-tools.md
• server.py
• static/404.html
• static/about.html
• static/articles/dane.html
• static/articles/dmarcbis.html
• static/articles/dnssec.html
• static/articles/index.html
• static/articles/p-reject.html
• static/articles/postmaster-tools.html
• static/articles/spf-lookups.html
• static/index.html
• static/privacy.html
• static/style.css
• tests/static_pages.py
• tests/test_article_rfc_links.py
• tests/test_contact_alias.py
• tests/test_no_personal_email_in_repo.py
• tests/test_results_page_controls.py
• tests/test_site_header_identical.py
• tests/test_tone_and_repetition.py
• tests/test_ui_consistency_a11y.py
• tests/test_visual_system.py

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📝 Walkthrough

Walkthrough

Adds an article about Gmail Postmaster Tools V2, including its compliance checklist, deliverability verdicts, sender checks, and API changes. Adds the article to the site route, sitemap, and article index, and updates page checks and static-asset cache versions.

Changes

Postmaster Tools article

Layer / File(s)	Summary
Article overview and compliance checklist docs/history/article-postmaster-tools.md, static/articles/postmaster-tools.html	Adds article metadata and explains the V1-to-V2 dashboard changes and Compliance status checklist.
Verdict interpretation docs/history/article-postmaster-tools.md, static/articles/postmaster-tools.html	Describes the listed Deliverability analysis verdicts, their stated conditions, and how checklist status relates to verdicts.
Sender checks and API migration docs/history/article-postmaster-tools.md, static/articles/postmaster-tools.html, static/style.css, tests/test_article_rfc_links.py	Documents sender-configuration checks, listed Gmail bounce codes, and V2 API changes. Adds verdict constants and table wrapping for long API values. The regression test checks the article’s external and internal links and RFC mentions.
Article discovery and page integration server.py, static/articles/index.html, docs/history/README.md, static/articles/postmaster-tools.html, tests/*	Adds the article route and sitemap entry, adds the article and Gmail filter to the index, and includes the page in existing page checks.

Static-asset cache versions

Layer / File(s)	Summary
Refresh static-asset versions static/404.html, static/about.html, static/articles/*.html, static/index.html, static/privacy.html	Changes stylesheet and script cache-version query parameters from 0c48283 to a2dacd1.

Priority: ⬇️ Low

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Feature

Merge Risk: ⚪ Minimal · up to ce2cb

No actionable issue remains in the supplied evidence; the article is ready to merge after normal checks.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 12.50% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 8 functions across 10 files. (14 skipped:…	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies the main change: adding an article about Gmail Postmaster Tools and its move away from reputation ratings.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

Docstring coverage is 12.50% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 8 functions across 10 files. (14 skipped: 14 unsupported.)

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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