IN THE FIELD GUIDE

Posthawk

posthawk.dev

Posthawk is an open-source email platform designed for developers to send transactional and marketing emails, schedule deliveries, manage templates, and handle inbound email through a simple REST API. It supports both managed cloud and self-hosted deployments, providing a complete email infrastructure with features like high deliverability, bounce handling, and multi-region support.

THE PRODUCT, BEYOND THE PITCH

Automatically researched · Not editorially reviewed · Sources checked Oct 13, 2026

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A good fit for

Developers using Next.js, Vercel, Cloudflare Workers, or edge runtimes who need a unified email API.

Know the limitations

Free plan limits to 3,000 emails per month and 100 emails per day, 1 domain, 2 API keys, 2 team members, 3 templates, 1 webhook endpoint, 10 MB email size limit, and 3-day log retention.

What you can do

Sending transactional, marketing, and inbound emails programmatically.

Features

Transactional email sending via a simple REST API with high deliverability and bounce handling.
Scheduled email sending with ability to cancel or modify before sending.
Inbound email processing with full attachment and header parsing via webhooks.
Email templates management with dynamic variables built on React Email.
Domain management with auto-generation of SPF, DKIM, DMARC, and MAIL FROM records.

Integrations

Not confirmed yet.

Platforms & data export

Not confirmed yet.

THE COST FOR YOUR TEAM

Go beyond the starting price.

Published plan prices for your team size and usage. Results update as you type. Taxes, currency conversion and unlisted add-ons are excluded, and anything the source did not state is called out rather than guessed.

PeopleBillingCurrencyPrices are shown as published. No exchange rates are applied.Monthly usage per toolApplies to each tool’s own unit. Leave at 0 for subscription cost only.

Cheapest fit for 1 person, all 1 tools

$0.00/month

$0.00 a year on these plans.

Plan costs based on your requirements
Tool / plan	Monthly	Per year	What this assumes
Posthawk FreeCheapest fit Flat subscription	$0.00	$0.00	Automatically extracted from the linked pricing source. Seat allowances, usage limits, taxes and terms are not confirmed — check them with the provider.
Posthawk Scale Flat subscription	$49.00	$588.00	Automatically extracted from the linked pricing source. Seat allowances, usage limits, taxes and terms are not confirmed — check them with the provider.

Alternatives to explore

Filter alternatives →

Candidates based on category and primary feature. Check feature and pricing differences before switching.

maileroo

✓ Reviewedprice clarity

Maileroo is an email delivery platform designed for sending transactional and marketing emails reliably and at scale. It offers a simple API, SMTP integration, and a user-friendly dashboard to manage email communication with a focus on deliverability, security, and ease of use.

Email & communicationFree plan

Mailofly

price clarity

Mailofly is a developer-first email delivery platform designed for transactional and marketing emails. It offers fast API delivery, high inbox placement rates, and scalable infrastructure with features like dynamic templates, real-time email validation, and AI integrations.

Email & communicationFree planAuto-researched

Keplars

✓ Reviewed

Keplars provides a modern email infrastructure platform designed for developers to build, send, and scale transactional and marketing emails with enterprise-grade deliverability and real-time delivery insights. It supports Gmail, Outlook, and custom domains with features like a unified email editor, sandbox testing, and 24/7 expert support.

Email & communicationFree plan

Noketa

✓ Reviewedprice clarity

Noketa is an email platform that unifies transactional email, marketing campaigns, and inbound alias management through a single API. It offers tools for building, sending, and automating emails with a focus on good design, reliable delivery, and developer experience.

Email & communication

Plan a switch from Posthawk →

What changed

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