🚀 Features

• Mailtrap driver - by @narekhovhannisyan in #98 (d399e)

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Contributors

• @narekhovhannisyan

First release carrying the full v1.1 scope — 36 issues closed since v0.3.0, 251 tests up from 141, still zero runtime dependencies, still works on Node / Bun / Deno / Cloudflare Workers / the browser.

Install:

npm i unemail # or: pnpm add unemail / bun add unemail
deno add jsr:@productdevbook/unemail

⚠️ Breaking

One rename across every driver and webhook import — one sed away.

- import resend from "unemail/drivers/resend"
+ import resend from "unemail/driver/resend"
- import resendWebhook from "unemail/webhooks/resend"
+ import resendWebhook from "unemail/webhook/resend"

Matches the naming convention used by the sibling libs (ahize, etiket). See MIGRATION.md for the full diff + shell recipe.

🛡️ Compliance & deliverability

The headline of v1.1. Gmail + Yahoo Feb-2024 bulk-sender rules are now a one-liner, and every primitive you need to run a real outbound program ships in-core.

• RFC 8058 one-click List-Unsubscribe — add unsubscribe: { url, mailto } to any message; headers auto-injected. Framework-agnostic one-click handler + HMAC-signed tokens in `unemail/compliance`. (#57)
• DKIM signing in the SMTP driver — RSA-SHA256 and Ed25519-SHA256, pure Web-Crypto, relaxed/relaxed canonicalization. Per-message resolver for multi-tenant. (#58)
• Suppression store (memory + unstorage) with `withSuppression` middleware — bounces / complaints / opt-outs never leave the process. (#59)
• Preferences store (category opt-outs) with `withPreferences` middleware — the Novu/Knock primitive, slim and pluggable. (#84)
• ARC signer (RFC 8617) for forwarders. (#78)
• DMARC aggregate (RUA) parser — gzip-aware, zero-dep XML subset. (#69)
• MTA-STS policy generator + TLS-RPT JSON parser. (#79)
• FBL/ARF parser (RFC 5965). (#80)

📨 Core & drivers

• `msg.template` pass-through across SendGrid, Mailgun, Postmark, Brevo, MailerSend, Loops, Zeptomail — native template variables everywhere. (#60)
• `msg.personalizations` — SendGrid-style per-recipient fan-out; one API call when the driver supports it, automatic loop otherwise. (#63)
• `msg.tracking` / `msg.sandbox` / `msg.metadata` — per-message overrides mapped into each provider. (#66)
• `msg.amp` and `msg.raw` — AMP4Email alt-part and bypass-the-builder raw MIME. (#91)
• `driver.cancel(id)` / `driver.retrieve(id)` — Resend implements; others surface `UNSUPPORTED`. (#65)
• `email.sendBatchStream(messages)` — AsyncIterable that yields one result per message for huge fan-outs. (#89)
• Queue worker honours `msg.scheduledAt` (memory + unstorage). (#61)
• New queue adapters: BullMQ, pg-boss, AWS SQS. (#77)
• Multi-region driver presets — Mailgun EU/US. (#76)
• Typed `Address` primitive (RFC 5322 + SMTPUTF8 validation). (#81)
• Typed `getInstance()` escape hatch documented for native provider APIs. (#67)
• `msg.preheader` is a first-class field.

🛠️ Middleware

• `withOAuth2` + `oauth2Gmail` / `oauth2Microsoft` presets — access-token refresh with caching. (#62)
• `withDedupe` (idempotencyKey / contentHash / recipient+subject). (#82)
• `withRetry` gains `exponential-jitter` / `full-jitter` / `decorrelated-jitter` + dead-letter routing. (#83)
• `withRateLimit` gets `rateLimitPresets` (sendgrid, mailgun, resend, postmark, ses, brevo) + proactive `Retry-After` backoff. (#75)
• `withMetrics` + Prometheus exposition registry. (#86)
• `scrubPii` / `withPiiLogging` — mask / hash / drop for GDPR logging. (#90)

🎨 Rendering

• HTML pipeline (`unemail/render/pipeline`) — composable `withPreheader`, `cidRewrite`, `darkModeHook`, `inlineCss` transforms. (#73, #92)
• Handlebars, Liquid, and i18n renderer adapters. (#87)
• ICS calendar invite builder (`unemail/ics`) — RFC 5545 `VEVENT` with organizer, attendees, alarms, methods REQUEST / PUBLISH / CANCEL / REPLY. (#64)

📡 Inbound & webhooks

• Reply stripper (EN/TR/DE/FR/ES) + thread stitcher over `In-Reply-To` / `References`. (#68)
• SES inbound adapter via SNS, with auto-confirm hook. (#85)
• Standard Webhooks (standardwebhooks.com) reference verifier — <5 kB drop-in replacement for Svix's ~1 MB client. (#71)
• Unified event stream (`unemail/events`) — `send.queued` / `send.attempt` / `send.success` / `send.error` converges with webhook-native `delivered` / `opened` / `clicked` / `bounced` / `complained` / `unsubscribed` into a single `EmailEvent` bus. (#70)

🧪 Testing & DX

• New matchers: `toHaveSentTo`, `toHaveSentWithSubject`, `toHaveSentWithAttachment`, `toHaveSentMatching`. (#74)
• `toEmailSnapshot()` helper — scrubs Message-ID/Date for stable snapshots. (#74)
• `Result` helpers — `isOk` / `isErr` / `unwrap` / `unwrapOr` / `mapOk` / `mapErr` / `tryAsync`. (#88)
• New cover art, full README refresh.
• Idempotent release workflow — reruns cleanly after partial failures.
• `pnpm release` now runs `attw` + `jsr:check --dry-run` before bumpp, so slow-type errors surface locally instead of in CI.

📚 Docs

README, MIGRATION.md, and every `docs/*.md` page refreshed in lockstep. New: `docs/rfcs/001-packaging.md` documents the single-package + sub-paths decision for v1.x.

🙏 Credits

v1.1 shipped end-to-end with Claude Opus 4.7 (1M context). Research, architecture, 251 tests, 36 issues — one sprint.

Full diff: v0.3.0...v0.4.1

🚀 Features

• Add timeout configuration and improve SMTP authentication error handling - by @unitythemaker in #20 (4b1d6)

View changes on GitHub

Contributors

• @unitythemaker

🚀 Features

• Add new provider support zeptomail - by @fayazara in #11 (dda3d)

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Contributors

• @fayazara

🐞 Bug Fixes

• smtp: Improve port handling and response parsing; enhance DKIM signing process - by @productdevbook in #9 (1e074)

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Contributors

• @productdevbook

🐞 Bug Fixes

• Update import paths and types for provider modules in package.json - by @productdevbook (be650)
• Update type paths for provider modules in package.json - by @productdevbook (ca97c)
• Remove mailcrab provider from exports in package.json - by @productdevbook (6f59b)

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Contributors

• @productdevbook

🚀 Features

• Enhance SMTP provider with advanced configuration options - by @productdevbook in #6 (78c82)

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Contributors

• @productdevbook

🚀 Features

• Add SMTP provider implementation and example usage - by @productdevbook in #4 (97414)

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Contributors

• @productdevbook

🚀 Features

• Add email providers - by @productdevbook in #2 (ab734)
• Add CLI tool for MailCrab setup and update package description and keywords - by @productdevbook (76b7c)

🐞 Bug Fixes

• Update release script to include bumpp for version management - by @productdevbook (af20e)

View changes on GitHub

Contributors

• @productdevbook