Newsletter Subscription Feature

What It Does

Provides a complete email marketing solution for collecting early access signups and newsletter subscribers. Users can subscribe via API endpoint and automatically receive welcome emails while being added to marketing lists.

Key Capabilities

• API Subscription: Simple REST endpoint for email signups
• Dual Email Services: Brevo for list management, Resend for welcome emails
• Validation & Error Handling: Email validation with duplicate detection
• Automated Welcome Emails: Branded welcome messages sent immediately
• Multi-Environment: Separate configurations for dev, QA, and production
• GDPR Compliance: Unsubscribe links and data protection

User Experience

1. Newsletter Signup: User submits email → validation → added to Brevo list → welcome email sent
2. Error Handling: Invalid/duplicate emails get appropriate error responses
3. Welcome Experience: Professional branded email with clear next steps
4. Unsubscribe: GDPR-compliant unsubscribe links in all emails

Technical Foundation

• Brevo Integration: Newsletter list management and subscriber tracking
• Resend Integration: High-deliverability welcome email delivery
• Email Templates: Responsive Edge.js templates with consistent branding
• Validation Layer: VineJS email validation with error handling
• Environment Separation: Isolated configurations per deployment environment