FlowCampaign Email Campaign Platform
FlowCampaign is a premium, high-performance email campaign and transactional analytics platform built on modern serverless edge architecture. It enables organizations to design, schedule, dispatch, and track high-volume email campaigns with micro-second precision.
Live URL: https://mails.nssoftwaresolutions.in
Last Updated: July 13, 2026
Status: Production — Edge-Optimized
Platform Overview
FlowCampaign serves as a comprehensive email marketing and transactional email platform that provides enterprise-grade email delivery, tracking, and analytics capabilities in a user-friendly interface. The platform supports both marketing campaigns and transactional emails with advanced tracking and analytics.
Key Statistics
| Metric | Value |
|---|---|
| Version | 1.0.0 (Production) |
| Architecture | Serverless Edge (Cloudflare Workers) |
| Database | SQLite + Drizzle ORM (Turso/Cloudflare D1 compatible) |
| Frontend | React 18 + Vite + TypeScript |
| Backend | Hono (Cloudflare Workers) |
| Email Providers | ZeptoMail, Mock SMTP, Custom SMTP |
| Performance | < 100ms edge response times |
| Scalability | Unlimited horizontal scaling |
Target Users
- Marketing Teams: Create and track email marketing campaigns
- Product Teams: Send transactional emails (welcome, password reset, notifications)
- Developers: API-first platform for programmatic email sending
- Businesses: Companies needing reliable email delivery with analytics
- Agencies: Marketing agencies managing multiple client campaigns
Core Features
Campaign Management
- Design and compose email campaigns with rich HTML editor
- Schedule campaigns for future delivery
- Manage multiple email templates
- Track campaign performance in real-time
Contact Management
- Import contacts via CSV/Excel
- Tag-based audience segmentation
- Custom contact fields
- Duplicate email prevention
Email Tracking & Analytics
- Real-time open tracking with pixel technology
- Click tracking with URL redirection
- Bounce and complaint tracking
- Advanced analytics dashboards
- Email client detection
Provider Management
- Multiple email provider support (ZeptoMail, SMTP)
- Provider rotation and failover
- Usage limits and quotas
- Credential encryption
Template System
- Pre-built professional templates
- Custom HTML template creation
- Template variables and personalization
- Responsive email design
Security & Compliance
- End-to-end encryption for provider credentials
- GDPR compliance tools
- Unsubscribe management
- Rate limiting and abuse prevention
Technology Stack
| Layer | Technology | Version | Purpose |
|---|---|---|---|
| Frontend | React | 18.x | UI framework |
| Build Tool | Vite | 5.x | Build optimization |
| Language | TypeScript | 5.x | Type safety |
| Styling | Tailwind CSS | 3.x | Utility-first CSS |
| Animations | Framer Motion | 12.x | Micro-animations |
| Backend | Hono | 4.x | Serverless framework |
| Runtime | Cloudflare Workers | Latest | Edge computing |
| Database | SQLite/Drizzle | Latest | Local/edge database |
| ORM | Drizzle ORM | Latest | Type-safe queries |
| Email Providers | ZeptoMail, SMTP | - | Email delivery |
Architecture Overview
FlowCampaign follows a modern serverless architecture:
- Edge-First: All requests served from Cloudflare's global network
- Serverless Backend: Stateless functions running on Cloudflare Workers
- Local-First Database: SQLite with Drizzle ORM for edge compatibility
- Monorepo Structure: Frontend, backend, and shared code in single repo
- Type-Safe: Full TypeScript coverage across all layers
Key Workflows
Campaign Creation
- Design email template → 2. Select audience → 3. Configure sending options → 4. Schedule delivery → 5. Track performance
Contact Management
- Import contacts → 2. Add tags → 3. Segment audience → 4. Create custom fields → 5. Manage preferences
Analytics Review
- View dashboard → 2. Analyze open rates → 3. Track click-through → 4. Monitor bounces → 5. Export reports
Provider Setup
- Add email provider → 2. Verify credentials → 3. Set usage limits → 4. Configure as default → 5. Monitor usage
Platform Highlights
- Edge Performance: < 100ms response times globally
- Real-time Tracking: Pixel-based open tracking, URL redirection for clicks
- Multi-provider Support: ZeptoMail, SMTP, with failover capabilities
- Advanced Analytics: Detailed campaign performance metrics
- Template Library: Professional email templates with customization
- Security First: Encrypted credentials, rate limiting, compliance tools
- Developer Friendly: API-first design, webhook support, extensible
- Cost Effective: Serverless architecture with usage-based pricing
Quick Navigation
⚡ Quick Start Get up and running in 5 minutes with basic setup and testing
🔧 Installation Guide Complete step-by-step installation for local development and production
🏗️ System Architecture Technical architecture, edge computing, and data flow
🗄️ Database Schema Complete database documentation with 12+ tables and relationships
🎯 Features & Workflows Complete feature breakdowns and user workflows
🔌 API Reference Complete API documentation for integration and automation
Use Cases
Marketing Campaigns
- Product launches and announcements
- Newsletter distribution
- Promotional offers and discounts
- Event invitations and follow-ups
Transactional Emails
- Welcome emails and onboarding
- Password reset and security alerts
- Order confirmations and receipts
- Usage reports and notifications
Automated Workflows
- Drip email campaigns
- Abandoned cart reminders
- User re-engagement sequences
- Birthday and anniversary emails
Performance Benchmarks
| Metric | Value | Notes |
|---|---|---|
| Email Delivery | < 500ms | Edge to provider delivery |
| Open Tracking | < 50ms | Pixel loading time |
| Click Tracking | < 100ms | Redirect response time |
| API Response | < 50ms | Edge API response |
| Dashboard Load | < 1s | Full dashboard rendering |
Compliance & Security
- GDPR Compliance: Built-in unsubscribe management, data export tools
- Email Authentication: SPF, DKIM, DMARC support through providers
- Credential Security: AES-256 encryption for provider credentials
- Rate Limiting: Per-IP and per-account rate limiting
- Audit Logs: Complete audit trail of all actions
FlowCampaign is built for reliability, performance, and ease of use, making it the ideal choice for businesses of all sizes needing professional email campaign management.