About Only One Email

Version: 1.0.0

Welcome to Only One Email, your comprehensive solution for managing multiple Gmail accounts from a single, unified platform with enterprise-grade security and privacy.

Our Mission

At Only One Email, we believe that managing multiple email accounts shouldn't be a hassle. Our mission is to simplify your digital communication by providing a powerful, secure, and intuitive platform that brings all your Gmail accounts together in one place, with complete control over your data and privacy.

What We Do

Unified email management for multiple accounts. We provide a unified email management experience that allows you to connect, organize, and manage multiple Gmail accounts through a single interface, with advanced security features and flexible storage options.

Key Features

🔗 Unified Gmail Dashboard

Access all your connected Gmail accounts from a single, intuitive dashboard. Switch between accounts seamlessly and view emails from all accounts in one unified interface.

🔒 Enterprise-Grade Security

RSA Encryption: All OAuth tokens encrypted with 2048-bit RSA encryption
Zero-Knowledge Architecture: We cannot decrypt your data without your password
Web Crypto API: Client-side encryption using browser's secure crypto functions
OAuth 2.0: Secure Gmail integration without storing passwords

📧 Smart Email Management

Cross-Account Search: Search across all connected Gmail accounts simultaneously
Email Metadata Processing: Process headers, labels, and metadata (not email content)
Unified Organization: Manage labels and folders across multiple accounts
Real-time Sync: Keep all accounts synchronized and up-to-date

🚀 Multi-Account Support

Free Tier: Connect up to 3 Gmail accounts
Premium Tier: Unlimited Gmail account connections
Account Switching: Quick switching between connected accounts
Connection Monitoring: Automatic detection of connection issues

💾 Flexible Storage Options

Local-Only Storage: All data stored locally in your browser (recommended)
Synced Storage: Optional encrypted backup to our servers
Hybrid Approach: Choose your preferred storage method
Data Control: Complete control over your email account data

🌍 Multi-Language Support

Our platform supports multiple languages, making it accessible to users worldwide with full internationalization support.

Technology Stack

Only One Email is built using cutting-edge technologies:

Frontend: Next.js 15 with React 19 and TypeScript
Backend: Next.js Server Actions with Prisma ORM
Database: PostgreSQL with encrypted data storage
Authentication: Better Auth with Gmail OAuth 2.0 integration
Encryption: RSA-2048 encryption with Web Crypto API
Storage: IndexedDB for local storage, optional server sync
Styling: Tailwind CSS with shadcn/ui components
Internationalization: next-intl for multi-language support

Security & Privacy

Your privacy and security are our top priorities:

RSA Encryption: 2048-bit RSA encryption for all sensitive data
Zero-Knowledge: We cannot access your encrypted data
Gmail OAuth 2.0: Secure authentication without password storage
Local-First Storage: Primary data storage in your browser
Email Metadata Only: We process email headers, not content
GDPR Compliant: Full compliance with data protection regulations
Regular Security Audits: Continuous security monitoring and updates

Data Processing

What We Process

Email Headers: Sender, recipient, subject, timestamp, labels
Account Information: Email address, display name
OAuth Tokens: Encrypted access and refresh tokens
Usage Analytics: Anonymous usage data for service improvement

What We Don't Process

Email Content: We never access email body content
Email Attachments: We don't process or store attachments
Personal Data: We don't access other Google services
Unencrypted Data: All sensitive data is encrypted

Our Commitment

We're committed to:

Privacy First: Your data stays private and under your control
Security Excellence: Enterprise-grade encryption and security measures
User Control: Choose how and where your data is stored
Transparency: Clear communication about data handling practices
Continuous Improvement: Regular updates and feature enhancements
Reliability: High uptime and dependable service
Support: Responsive customer support when you need it

Contact Us

Have questions, suggestions, or need support? We'd love to hear from you!

Email: support@onlyone.email
Website: www.onlyone.email
Support: Available through our platform
Documentation: Comprehensive guides and tutorials

Join Our Community

Stay updated with the latest features and improvements:

Follow us for updates and announcements
Share your feedback and suggestions
Help us improve Only One Email for everyone
Report bugs and request new features

Thank you for choosing Only One Email - where Gmail management meets enterprise security and simplicity.