Campaign workspace
The visual block editor supports previews, merge tags, reusable templates, scheduling, and cancellation.
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06Open-source build
Hedwig Mail
A self-hosted broadcast email tool for contact lists, visual campaign design, scheduled delivery, and engagement tracking.
Autter-dev/hedwig-mail
06
01Contacts and lists
02Visual editor
03Postgres queue
04Resend or SES
Purpose
The reason for the build
Teams should be able to run a mailing list without handing contact data and campaign history to a marketing platform. Hedwig Mail packages the editor, sender, queue, tracking, and signup forms into one deployable application.
Architecture
How the pieces connect
The application stores contacts, campaigns, jobs, and migrations in Postgres. pg-boss runs the delivery queue, Resend or Amazon SES sends mail, and optional S3-compatible storage holds reusable campaign assets.
Capabilities
What the project handles
Contact operations
Teams can import CSV or XLSX files, organize lists, track subscription state, and expose signup forms.
Delivery controls
Provider rate limits, one-click unsubscribe, double opt-in, and suppression checks shape each send.
Owned analytics
Open and click events stay with campaign records, and the dashboard turns them into per-campaign charts.
Build notes
Constraints that shaped it
01
Postgres handles both application data and queued jobs, which removes Redis from the standard deployment.
02
A Docker Compose setup provides the editor, database, and local development path in one repository.
Tools and systems
- TypeScript
- Postgres
- pg-boss
- Resend
- Amazon SES
- Docker