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DoubleZero

DoubleZero

Last Updated:2/1/2026
Pricing:
FreeOne-time
Connect:
Wispr Flow

Wispr Flow

FEATURED
Vidnoz AI

Vidnoz AI

FEATURED
OpenArt AI

OpenArt AI

FEATURED

What is DoubleZero

DoubleZero is a self-hosted email platform built to work with Amazon Web Services Simple Email Service. Instead of paying monthly fees to companies like SendGrid or Mailchimp, you install this software yourself and connect it to your own AWS account. This gives you full control over your email sending at a much lower cost.

The tool provides a clean dashboard where you can send emails, track delivery status, monitor bounces, and view recipient activity. It connects to AWS SES through a simple setup process using SST configuration. You get all the features you need for transactional emails, like password resets and notifications, plus marketing features in the Pro version. The software runs in a Docker container, making it easy to deploy anywhere.

Features of DoubleZero

  • Self-hosted email service with AWS SES integration

  • Email monitoring dashboard with delivery tracking

  • Multi-recipient tracking and analytics

  • REST API and JavaScript client library

  • Open source and fully customizable

  • Docker container deployment

  • SST automated AWS configuration

  • Pro version with WYSIWYG editor and automation

  • Contact and list management capabilities

  • Team collaboration features

DoubleZero Pricing

Most Popular
Free

Free

What's included:
  • Transactional emails
  • Multi-recipient tracking
  • SMTP endpoint
  • REST API access
  • Email monitoring dashboard
  • Open source code access
  • Self-hosted deployment
  • AWS SES integration
  • Docker container support
Pro

$175 once

What's included:
  • All Free features included
  • WYSIWYG email editor
  • Contact management system
  • Email lists and segmentation
  • Broadcast campaigns
  • Team collaboration tools
  • Activity feed
  • Automation workflows
  • Advanced analytics
  • Lifetime updates

DoubleZero Use Cases

DoubleZero Repository

View on Github
Stars1,246
Forks65
Repository Age2 years
Last Commit1 year ago

FAQ's About DoubleZero

Is DoubleZero completely free to use?
Yes, the core version is completely free and open source. You can download it, install it on your own server, and use it without any license fees. Your only costs are AWS SES usage fees (about $0.10 per 1,000 emails) and hosting costs. The Pro version costs $175 as a one-time payment if you need advanced features.
How is DoubleZero different from services like SendGrid or Mailchimp?
Unlike monthly subscription services, DoubleZero is software you own and host yourself. You connect it to your AWS SES account, so you pay AWS directly for email sending instead of paying a middleman. This saves money and gives you full control. However, you need technical knowledge to set it up.
What technical skills do I need to use DoubleZero?
You should be comfortable with basic DevOps tasks like setting environment variables, using Docker containers, and working with AWS services. The setup uses command-line tools and requires configuring AWS SES. If you can deploy a Docker container and follow documentation, you can use DoubleZero.
Can I use DoubleZero for marketing emails and newsletters?
Yes, especially with the Pro version. The Pro version includes contact management, email lists, broadcast campaigns, and automation features specifically designed for marketing emails. The free version focuses on transactional emails but can handle basic marketing needs through the API.
What happens if I need help or support?
DoubleZero is community-supported through GitHub issues and Discord. Since it is open source, there is no official customer support hotline. However, the documentation is comprehensive, and the developer is responsive to questions. For hosted solutions or custom integrations, you can contact the creator directly for paid consulting.
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