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.
IN THE FIELD GUIDE
maileroo
maileroo.com
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.
THE PRODUCT, BEYOND THE PITCH
Editorially reviewed · Sources checked Sep 15, 2026
A good fit for
- Businesses of all sizes including startups, agencies, and enterprises needing scalable email delivery solutions.
- Developers and businesses looking for a developer-first email API with easy integration and SDKs.
Know the limitations
- Monthly email quota limits apply; exceeding the quota stops sending until reset or plan upgrade.
What you can do
- Sending marketing emails to users who have explicitly opted in to receive them, including managing marketing campaigns.
Features
- SMTP relay service for transactional and bulk emails with real-time delivery logs and webhooks.
- Developer-friendly REST API for sending transactional and bulk emails, rendering dynamic templates, and automating account management.
- Drag-and-drop email template builder for creating responsive emails without coding.
- Real-time analytics and monitoring including delivery, opens, clicks, bounces, and suppressions with full event timelines.
- Inbound email routing to receive and route incoming emails directly into applications.
Integrations
- Easy integration with applications via SMTP credentials or official SDKs for multiple programming languages.
Platforms & data export
- Accessible via web dashboard, SMTP, and RESTful Email API with SDKs for PHP, Laravel, Node.js, Python, Go, .NET, Java, Ruby on Rails, and cURL.
- Exportable data and detailed reporting available for email analytics and delivery metrics.
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.
Cheapest fit for 1 person, all 1 tools
$0.00/month
$0.00 a year on these plans.
| Tool / plan | Monthly | Per year | What this assumes |
|---|---|---|---|
Free PlanCheapest 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. |
A practical workflow
- Create a free account, generate SMTP credentials or API key, then send your first email using those credentials.
Based on the sources below. Editorial review does not imply hands-on product testing.
Alternatives to explore
Filter alternatives →Candidates based on category and primary feature. Check feature and pricing differences before switching.
Keplars
✓ ReviewedKeplars 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
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