MCP-native for Cursor, Claude Code, and Windsurf

Changelog

What's new in
Posthawk

New features, improvements, and fixes shipped with each release.

v1.3.0Jun 9, 2026

Latest

Automations editor, AI on Gemini, bulk tools

A visual workflow-automation editor, the dashboard AI migrated to Google Gemini, plus a documentation overhaul and bulk contact management.

FeatureVisual automation editor with an AI-assisted cron parser for scheduling jobs in plain English

FeatureBulk-delete contacts — filter by email, domain, tag, or status with a dry-run preview before deleting

FeatureDocumentation site overhaul — full-text search, collapsible code panels, and synthetic request examples

ImprovementDashboard AI assistant migrated to Google Gemini with per-workspace token and usage accounting

ImprovementRedesigned blog listing and refreshed marketing copy

FixCorrected bounce and complaint aggregation on the metrics page

v1.2.0May 28, 2026

Vercel & Cloudflare-native, Bearer auth

First-class Vercel and Cloudflare Workers integrations, plus a Resend-compatible API surface.

FeatureVercel and Cloudflare Workers integration pages with one-click starter templates

FeatureAuthorization: Bearer now accepted alongside the X-API-Key header

FeatureResend-style JSON error envelope with an X-Request-ID on every response

ImprovementConsolidated self-host SQL bundle and edition gating for cloud-only routes

FixMFA backup codes were silently consumed on a misconfig — now verified correctly

v1.1.0May 13, 2026

Workspace-scoped security & plan enforcement

Hardened multi-workspace isolation, plan-quota enforcement, and restart-proof alerting.

FeaturePlan-quota enforcement across API keys, domains, and webhooks

FeatureStripe-hosted Checkout and a self-serve customer billing portal

ImprovementCentralised workspace resolution so JWT-authed writes always land in the selected workspace

ImprovementWorkspace-scoped RLS, reply-to support, and per-workspace rate limits

ImprovementOne alert email per state transition — no more periodic reminder spam

v1.0.0May 2, 2026

Posthawk 1.0 — public launch

The public launch: pricing, legal, comparison pages, and a pre-launch hardening sweep across the whole platform.

FeatureFree / Pro / Scale plans with metered usage and pay-as-you-go overage

FeatureComparison and migration pages for SendGrid, Resend, and Postmark

FeatureFull Stripe billing — subscribe, change plan, cancel, reactivate, and invoices

ImprovementPre-launch hardening sweep across performance, security, and product copy

v0.5.0Apr 28, 2026

Broadcasts, CLI, and BIMI

Marketing-grade broadcasts on the same sender, a Claude Code-style CLI, BIMI, and n8n nodes.

FeatureBroadcasts — fan out to a tagged contact list with race-safe cancel mid-flight, live progress, and an audit log

FeaturePosthawk CLI v0.4 with a Claude Code-style UX, distributed via Homebrew and Scoop

Featuren8n community nodes for no-code workflow automation

FeatureBIMI support for verified brand logos in the inbox

ImprovementProduction-hardened broadcasts, suppressions, and metrics

v0.4.0Apr 4, 2026

AI assistant & usage-based billing

An AI assistant built into the dashboard, AI usage accounting, and pay-as-you-go billing add-ons.

FeatureDashboard AI assistant with a command palette for sending and managing from anywhere

FeatureAI sessions with per-workspace token and usage tracking

FeaturePay-as-you-go billing and add-ons for extra team seats and workspaces

FeatureMFA email notifications on two-factor enrollment

ImprovementMobile-responsive dashboard and email open/click tracking

v0.3.0Mar 21, 2026

MCP server, SMTP relay, 2FA

Posthawk learns to speak MCP for AI agents and SMTP for legacy tools, with sandbox mode and batch send.

FeatureMCP server with an OAuth workspace selector — send and manage from Claude, Cursor, and any MCP client

FeatureSMTP submission relay on port 587 with STARTTLS

FeatureTwo-factor authentication and per-domain sending limits

FeatureSandbox mode, batch send, contacts, and suppression lists

ImprovementAPI request logs with CSV export

v0.2.0Mar 8, 2026

Rebrand to Posthawk + cloud edition

The Courier → Posthawk rebrand, the managed cloud edition, engagement tracking, and the first official SDKs.

FeatureCloud edition — managed domains, dual-region inbound receiving, and per-workspace SES tenants

FeatureOpen/click tracking, List-Unsubscribe headers, and custom tracking domains

FeatureOfficial TypeScript and Python SDKs, plus a Domains API across all SDKs

FeatureTemplate editor and outbound webhooks with signed delivery

ImprovementRebranded from Courier to Posthawk with new brand assets

v0.1.0Jan 5, 2026

First cut — the foundation

The first working build: a REST API on AWS SES, real-time logs, scheduling, and one-command self-hosting.

FeatureREST API for transactional email via AWS SES

FeatureReal-time email logs over Socket.IO with ES256 JWT verification

FeatureScheduled sending with cancel and reschedule

FeatureMulti-workspace support, API key management, and JWT auth

FeatureOne-command self-hosting with Docker Compose and Dokploy

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