Practical guides on private inboxes, agent-friendly email, verification testing, and infrastructure that stays out of your way.
A six-digit regex is easy to write and easy to fool. Build a layered OTP parser using context scoring, format awareness, false-positive filters, safe HTML handling, and a labeled test corpus.
Relay does not emit webhooks itself. Learn how to build a polling adapter that delivers signed, retried, idempotent webhook events with replay protection and observable failure handling.
Compare MailHog-style SMTP capture with real inbox testing through Relay. Learn what each proves about MIME, DNS, delivery, rendering, security, and where both fit in a practical CI strategy.
Run real email verification in GitHub Actions with Relay REST, scoped secrets, derived-value masking, parallel inbox isolation, bounded polling, and artifacts that exclude sensitive mail content.
Read verification codes in Cypress without exposing API keys to the browser. Use a Node task, a fresh Relay inbox, bounded REST polling, and strict parsing for authorized test email.
Build a reliable Playwright email verification test with a real Relay inbox, bounded polling, precise OTP parsing, isolated test data, secure CI credentials, and clear retention guidance.
Turn API documentation into a reliable agent interface with a focused llms.txt, precise OpenAPI contracts, task-based examples, retrieval evals, and disciplined versioning.
Give AI agents useful email access without handing over every inbox. Learn how scoped Relay API keys, per-agent identities, budgets, audits, and policy layers make delegation safer.
Email can turn untrusted content into agent instructions. Learn practical defenses for indirect prompt injection, from data separation and tool gating to adversarial tests.
See how a browser agent and temporary Relay inbox complete an authorized signup, from provisioning and verification to evidence, cleanup, and failure handling.