Services
Detailed architecture flow and internal/external services breakdown.
Reloop is built using a highly modular microservice architecture. This separation allows you to scale specific components (such as mail queues or logs processing) depending on your server workload.
Component Breakdown
The Reloop stack consists of 18 application services (3 frontends, 15 backends) and 10 external backing systems.
1. Frontend Services (3)
web: The main public landing page and landing website.dashboard: The developer console where users manage domains, write templates, view delivery metrics, configure webhooks, and generate API keys.docs: The documentation portal you are viewing right now.
2. Backend Services (15)
auth: Handles user registrations, authentications, and organization-scoped permission checks.api-key: Validates developer API tokens for programmatic integrations.domain: Verifies and manages domain records configurations (SPF, DKIM, MX, DMARC).mail: Manages template assembly, parsing, queuing, and delivery job dispatching.webhook: Dispatches delivery events (delivered, bounced, opened, clicked) to external webhooks.contacts: Handles subscriber lists, contact profiles, segments, and unsubscribe requests.logs: Centralizes activity streams and debug logs.workflow: Manages campaign automation workflows, timing wait steps, and drip actions.upload: Manages file storage attachments and static image uploads.template: Compiles dynamic template variables before mailing dispatch.credits: Tracks account credit balances, billing cycles, and quotas.email: The core API service mapping outbound HTTP sending requests to the queue processor.inbox: Manages receiving inbox threads and incoming messages.smtp: Outbound SMTP submission server using KumoMTA.inbound: Inbound MX SMTP processing receiver using KumoMTA.
3. Supporting Infrastructure (10)
- PostgreSQL: Stores persistent relational data.
- Redis: Coordinates task queues for BullMQ worker threads.
- ClickHouse: Optimized column database for rapid analytics queries.
- MinIO: S3-compliant file storage.
- NATS JetStream: Real-time event broker.
- Rspamd: Anti-spam scoring system.
- Mailpit: SMTP sandbox mail catcher.
- Caddy: High-performance reverse proxy and automatic SSL manager.
Was this page helpful?