Use cases
Transactional email patterns.
Implementation guides for the patterns every product ships in its first quarter. Each page is real production code, not theory — copy, adapt, ship.
Password reset emails
Single-use tokens, short TTLs, replay defense, and the deliverability rules that keep auth mail out of spam.
ReadOTP and 2FA email
Six-digit codes with throttling, replay defense via single-use deletion, and the subject-line discipline that surfaces codes in notification previews.
ReadMagic-link sign-in
Prefetch-safe click handlers, cross-device flow handling, and the patterns that resist replay even when an email is leaked.
ReadEmail verification
Confirm new-user ownership of an address. The same single-use-token pattern as password reset, with verification-specific timings.
ReadTransactional notifications
Receipts, alerts, status updates. Idempotent under retry, deduplicated, replayable. The backbone of every SaaS.
ReadSaaS onboarding sequences
Welcome + setup + activation + nudge. Idempotent scheduling, milestone gates, opt-out compliance, deliverability for new domains.
ReadStart building
Your next message starts here.
Connect your domain, create an API key, and send with SNDR.