DoubleZero

DoubleZero is an open-source, self-hosted email API and management dashboard specifically designed to work with Amazon Simple Email Service (SES), allowing developers to maintain control over their email infrastructure while utilizing AWS for delivery. The software is deployed as a Docker container and integrates with the Serverless Stack (SST) to automate the configuration of the SES, SNS, and SQS pipeline.

By acting as a middle layer, DoubleZero removes the need for developers to manually build custom infrastructure to track bounces and delivery status. It provides a web interface for monitoring email delivery and an API endpoint for sending messages from external applications. This setup allows users to leverage the affordability of AWS SES while gaining a visual interface for managing their email flow and auditing sent messages.

Key features

• Automated AWS configuration via SST for SES, SNS, and SQS pipelines
• Email dispatch via POST requests to a dedicated API endpoint
• Multi-recipient tracking for monitoring email status
• Search functionality for emails and individual recipient messages
• Direct viewing of email bodies within the dashboard
• Request and queue tracking logs
• Support for Markdown and HTML email bodies
• API key management for secure authentication

DoubleZero is built for developers who want the cost benefits of AWS SES without the complexity of building a custom monitoring system. It uses a SQLite database for local data storage and requires a verified domain within the AWS management console to send emails. The system handles attachments, custom headers, and provider options through its JSON API, which supports parameters for CC, reply-to addresses, and custom provider tags. The deployment process involves pulling a Docker image and configuring environment variables such as the AWS region and SQS URL.

This tool is a lightweight management layer for AWS SES, bridging the gap between raw cloud infrastructure and a full-featured email marketing platform.