πŸ”Œ Integrations

Third-party system connections including CRM, webhooks, and external platforms.

πŸ“– Read Full Integrations Overview - Comprehensive guide to PenguinMails integration capabilities including API-first strategy, Vault secrets management, and implementation roadmap.

MVP Status: API-First Approach

Strategy: Build general-purpose REST API + webhooks first (MVP), add vendor-specific integrations later (Post-MVP)

Current State: Foundation features documented, implementation in progress

MVP Focus (Q1 2026):

  • βœ… API Key Management System with Vault storage

  • βœ… Core REST API endpoints (contacts, campaigns, emails, analytics)

  • βœ… Webhook system for real-time event notifications

  • βœ… API documentation (OpenAPI/Swagger)

Post-MVP (Q1-Q2 2026):

  • Salesforce/HubSpot CRM integrations (Q1 2026)

  • Zapier integration for 5,000+ apps (Q2 2026)

  • ESP integration UI (Q3 2026)

Rationale: API-first approach enables customers to build custom integrations immediately while we develop pre-built vendor integrations on top of stable API foundation.

Features in This Category

⏳ In Development (MVP - Q1 2026)

  • API Key Management - Secure API key generation, Vault storage, permission scopes, rate limiting (P0 - Critical)

  • REST API Endpoints - Core API for contacts, campaigns, emails, analytics with OpenAPI documentation (P0 - Critical)

  • Webhook System - Real-time event notifications with retry logic and signature verification (P1 - High)

βœ… Available Now

οΏ½οΏ½ Coming Soon (Post-MVP)

  • CRM Integration - Salesforce and HubSpot bi-directional sync (Q1 2026)

  • Zapier Integration - Connect with 5,000+ apps via no-code automation (Q2 2026)

  • ESP Integration UI - User interface for Postmark/Mailgun configuration (Q3 2026)

  • Custom Webhook Builder - Advanced filtering and conditional logic (Q3 2026)

  • Additional CRM Integrations - Pipedrive, Zoho, Close.io (Q2-Q3 2026)

Missing Features & Roadmap

MVP Gaps (Q1 2026)

Critical (P0) - Blocks programmatic integrations

  1. API Key Management UI (5-7 days) - Self-service API key creation, viewing, regeneration, revocation

  2. Core REST API Implementation (2-3 weeks) - Contacts, campaigns, emails, analytics endpoints

  3. API Documentation (1 week) - OpenAPI/Swagger with interactive explorer and code examples

High Priority (P1) - Enables real-time integrations

  1. Webhook System Backend (1-2 weeks) - Event delivery engine with retry logic and signature verification

  2. Webhook Configuration UI (1-2 weeks) - Self-service webhook setup with event selection and testing

Total MVP Effort: 6-9 weeks

Post-MVP Roadmap

Q1 2026: Advanced CRM Integrat

  • Salesforce integration with OAuth and bi-directional sync (20-30 days)

  • HubSpot integration with field mapping and workflow triggers (20-30 days)

Q2 2026: No-Code Integrations

  • Zapier integration for 5,000+ apps (2-3 weeks)

  • Pre-built Zaps for common workflows

Q3 2026: Enhanced Features

  • ESP Integration UI for Postmark/Mailgun configuration (10-14 days)

  • Custom Webhook Builder with advanced filtering (3-4 weeks)

  • Additional CRM integrations (Pipedrive, Zoho, Close.io)

Q4 2026+: Ecosystem Expansion

  • Integration Marketplace for third-party developers (8-12 weeks)

  • Real-Time Sync with sub-1-minute latency (6-8 weeks)

Detailed Roadmap: Integrations Roadmap

Vault Integration & Secrets Management

Status: βœ… Fully Documented - Architecture and implementation workflows defined

PenguinMails uses HashiCorp Vault for centralized secrets management, providing enhanced security, automated rotation, and disaster recovery capabilities.

Key Features:

  • VPS SSH Key Management: Admin and tenant SSH keys stored in Vault with 90-day rotation

  • SMTP Credentials Storage: MailU admin credentials encrypted and stored in Vault with 180-day rotation

  • Tenant API Key System: API keys hashed with bcrypt and stored in Vault with on-demand rotation

  • Disaster Recovery: Automated daily backups enable rapid recovery from VPS compromise or Vault failure

Documentation:

Third-Party Dependencies

Critical Services (P0):

  • HashiCorp Vault - Secrets management (HCP Vault: $22/month MVP, self-hosted Post-MVP)

  • Stripe - Payment processing (2.9% + $0.30 per transaction, no migration planned)

  • Hostwind API - VPS provisioning ($5-50/month per VPS, add alternatives Q2 2026)

Active Integrations:

  • Postmark - Transactional email delivery ($1.25 per 1,000 emails)

  • Mailgun - Bulk marketing email delivery ($35/month + $1/1,000 emails)

  • Loop.so - Transactional email service ($29/month, migrate to MailU Q3 2026)

Planned Integrations (Post-MVP):

  • Salesforce - CRM integration (Q1 2026)

  • HubSpot - CRM integration (Q1 2026)

  • Zapier - 5,000+ app connections (Q2 2026)

Detailed Analysis: Third-Party Dependencies Report

Cross-References

Related Features:

Implementation:

Business Strategy:

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