Validate email HTML and assets with Mailgun Inspect pre-send QA.
npx skills add https://github.com/sinch/skills --skill sinch-mailgun-inspect
Please help me install this Agent Skill. Skill: sinch-mailgun-inspect Source: https://github.com/sinch/skills/tree/main/skills/sinch-mailgun-inspect Command: npx skills add https://github.com/sinch/skills --skill sinch-mailgun-inspect
Many email campaigns fail or underperform because of broken links, inaccessible HTML, missing or oversized images, or rendering issues across clients; this Skill centralizes pre-send QA to catch those problems before they reach recipients.
Run a full Mailgun Inspect pre-send QA on my email HTML to check accessibility, links, images, code analysis, and generate previews while polling until all tests are completed.
High-intent search queries and answers about installing and using this skill.
Email HTML validation detects WCAG issues, missing alt text, broken links, and insecure URLs before sending. It analyzes HTML/CSS compatibility and generates client previews by applying pre-send QA checks to catch rendering issues across email clients.
Automating email QA in a CI/CD pipeline uses create-then-poll asynchronous jobs to gate builds. It initiates validation jobs, polls until completion, and fails builds when critical accessibility, link, or image issues are detected, preventing broken emails from deploying.
Pre-send email testing supports HTML strings, URL lists, and file uploads as input. It validates embedded links and uploaded images to find broken resources, applying region-aware base URLs to route requests correctly for asynchronous polling workflows.
Asynchronous polling for email previews creates a validation job, then repeatedly checks its status until Completed or Failed. This pattern handles long-running accessibility, code analysis, and image validation tasks, returning rendering previews and issue reports when finished.
Email campaigns underperform due to inaccessible HTML, broken links, missing or oversized images, and rendering issues across clients. Pre-send QA centralizes accessibility testing, link validation, and image checks to catch these problems before recipients see them.
Mailgun API credentials are required to run email accessibility and image validation. The workflow uses region-aware base URLs for US and EU endpoints, handling secrets safely while submitting HTML or file uploads for asynchronous content checking and preview generation.
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