Marketplace
Threaded inbox alongside a week-view calendar.
Email & Calendarreplaces Google Workspacereplaces Microsoft 365
Postcard Mail & Calendar
A respectful inbox and a calendar that's just a calendar.
atlas-collective.postcard-mail.app
About this ARD
An email + calendar front-end that runs against any IMAP host you trust.
What's inside
- IMAP/SMTP
- CalDAV
- Shared calendars
- Threaded UI
- Aliases
- Spam pipeline
Recommended stack
PostgresNext.js
Build it with
This ARD has been validated to scaffold cleanly with the following AI builders and agents.
AI builders
- Lovable
- Base44
- Cursor
Recommended cloud
- Lovable Cloud
- Self-hosted
Recommended AI models
- Gemini
Replaces
Google WorkspaceMicrosoft 365