⚙️ Queue & Background Jobs

Background job processing, queue monitoring, and notifications.

MVP Status

Current State: Core email pipeline and background jobs active

What’s Ready:

  • Email Pipeline (PostgreSQL + Redis) - ACTIVE

  • Background Jobs (job processing) - ACTIVE

  • High throughput (10,000+ emails/minute)

  • At-least-once delivery guarantee

  • Smart throttling and retry logic

  • Multiple queue priorities

What’s Working:

  • Email sending jobs processed reliably

  • Campaign processing and analytics aggregation

  • Warmup scheduling and health checks

  • Queue monitoring and metrics

See Queue Roadmap for future enhancements.

Features in This Category

✅ Available Now

Core Email Pipeline

PostgreSQL + Redis queue system for high-throughput email processing.

Key Capabilities:

  • High Throughput: Process 10,000+ emails/minute

  • Reliable Delivery: At-least-once delivery guarantee

  • Smart Throttling: Respect provider and warmup limits

  • Dynamic Content: Personalization injection

  • Automatic Retries: Exponential backoff for failed jobs

  • Dead-Letter Queue: Failed job handling

  • Multiple Priorities: priority-high, campaign-standard, warmup, retry queues

  • Per-Tenant Rate Limiting: Enforce tenant-specific limits

  • Per-Node Throttling: Warmup-aware throttling

  • Stateless Workers: Horizontal scaling support

Status: ACTIVE Priority: Critical

Background Jobs

Job processing system for asynchronous tasks.

Key Capabilities:

  • Job Types: email.send, campaign.process, import.contacts, export.data, webhook.dispatch, maintenance.cleanup

  • Priority-Based Processing: High-priority jobs processed first

  • Graceful Shutdown: Complete jobs before shutdown

  • Stalled Job Detection: Re-queue stalled jobs automatically

  • Idempotent Design: Safe to retry jobs

  • Queue Monitoring: Real-time dashboard

  • Prometheus Metrics: Integration for monitoring (2026 Spike)

Status: ACTIVE Priority: Critical

�� Future Enhancements

Queue Monitoring Dashboard

Enhanced real-time queue monitoring and alerting.

Planned Capabilities:

  • Real-time queue depth visualization

  • Job throughput metrics

  • Worker health monitoring

  • Alert configuration

  • Historical trend analysis

Status: Future Enhancement Priority: Medium

Advanced Job Scheduling

Sophisticated job scheduling with dependencies and workflows.

Planned Capabilities:

  • Job dependencies (wait for other jobs)

  • Workflow orchestration

  • Scheduled recurring jobs

  • Job chaining

  • Conditional execution

Status: Future Enhancement Priority: Low

Notification System

In-app and email notifications for users.

Planned Capabilities:

  • In-app notifications

  • Email notifications

  • Push notifications

  • Notification preferences

  • Alert management

Status: Future Enhancement Priority: Medium

Note: Notifications rely on background job processing infrastructure.

Feature Documentation

Technical Implementation

  • Queue API - Background job management

  • Email Pipeline - Email sending infrastructure

  • Epic 6: Core Email Pipeline - Internal task reference for implementation tasks

Business Strategy

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