Multi-domain Resend inbox
Switch between Resend-powered app domains and manage inbound support mail from one focused dashboard.
BausMail
Capabilities
Everything needed to run a small Resend mailbox.
BausMail focuses on practical operator workflows for teams that want to self-host their own email client instead of wiring a mailbox UI for every app.
Sent mail, search, threading, and compose
Handle replies, forwards, sent messages, starred mail, and searchable threads without building a custom admin tool.
Webhook ingestion and manual sync
Ingest Resend received and sent events through signed webhooks, with manual sync available for refresh and backfill workflows.
Postgres + Drizzle migrations
Store mailbox data in Postgres with Drizzle ORM migrations that fit normal self-hosted deployment flows.
Trusted self-hosted deployment model
Designed for single-tenant deployments where the operator controls hosting, database access, environment variables, and admin sign-in.
Allowlisted admin access
Keep the mailbox private with credentials-based sign-in limited to the email addresses configured for your deployment.
Security model
Built around server-side configuration.
BausMail is meant for trusted deployments where the operator controls the hosting environment and database. The app reads Resend API keys from server-side environment variables and does not store those keys in the application database.
Server-only setup
Environment
RESEND_DOMAIN_API_KEYS='{
"acme.dev": "re_...",
"launchkit.app": "re_..."
}'Database
domains.api_keynot stored
webhook eventsverified
admin accessallowlisted
Early pre-1.0 software
Status
BausMail is open-source software intended for trusted self-hosted single-tenant deployments. Review the README and security notes before deploying it with real customer email.