Deliverability QA in CI/CD with the WillItInbox API

What belongs in CI

• Syntax and validation checks for seed or fixture recipients.
• Template smoke tests that generate a real email and check for missing headers, auth failures, or broken content assumptions.
• Report fetching and artifact storage for release evidence.

What should not block every deploy

Do not fail every build on ambiguous reputation or placement signals. Fail on deterministic issues such as missing DKIM, broken DMARC alignment, invalid MIME, missing unsubscribe for bulk mail, or known bad links.

import { WillItInboxClient } from './sdks/node/index.mjs';

const client = new WillItInboxClient({ apiKey: process.env.WILLITINBOX_API_KEY });
const test = await client.createTest();
console.log('Send your template to:', test.email_address);
// After sending, poll client.getReport(test.token) until complete and inspect blockers.

For product context, read the email validation API solution and the existing reading your WillItInbox report guide.

Make the release gate deterministic

A CI deliverability gate should test a versioned fixture, not a message assembled differently on every run. Store the template commit, sender identity, expected authentication domains, and threshold policy with the build artifact. The pipeline should fail on stable contract violations such as missing text/plain, broken authentication, unsafe links, or a score below an agreed floor, while transient provider evidence should be reported separately.

Start with the API reference, then use the SDK guide for polling and webhook verification. Do not put production API keys in repository fixtures or CI logs.

Continue this developer testing, sdks, webhooks, and ci/cd workflow with the commercial page, the core guide, the implementation docs.