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MailMates.app

Privacy Policy

Your privacy matters to us. Here's how we protect your data.

Last updated: November 17, 2025

Introduction

MailMates.app ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our Chrome extension and related services (collectively, the "Service").

Information We Collect

Personally Identifiable Information

We collect the following personally identifiable information:

  • Email address: Collected from Firebase authentication for user account identification
  • Name: Collected from your user profile (first name, last name, full name) for personalization
  • Profile picture: Collected from your user profile for display purposes

This information is stored locally in your browser's extension storage and on our secure backend servers (Firebase Firestore) for user authentication, account management, and personalization of the extension experience.

Authentication Information

We collect and store:

  • Firebase authentication tokens: Stored locally in your browser's extension storage for session management
  • Token expiration timestamps: Tracked to automatically refresh authentication sessions

This information is stored locally only and is used for maintaining user authentication sessions, automatic token refresh, and secure API access.

Personal Communications

When you explicitly use our AI features (email generation, summarization, quick replies), we collect:

  • Email content: Email body text, subjects, sender information, recipient information
  • Email metadata: Sender email addresses, sender names, message dates, message IDs

Important: Email content is only collected when you explicitly use our AI features. We do not passively collect or read your emails. Email content is sent to our backend API servers for AI processing and is processed in real-time. The actual email content is not permanently stored—only metadata about processed emails (type, language, length) may be logged for usage tracking.

User Activity

We collect the following usage data:

  • Type of AI feature used (email generation, summarization, quick reply)
  • Which AI model was used for each request
  • Language, tone, and length preferences
  • Processing metrics: prompt length, response length, tokens used, processing time

This data is stored on our backend servers (Firebase Firestore) in usage logs for quota management, usage limits enforcement, service improvement, and user experience optimization. We do NOT collect keystroke logging, mouse tracking, or general browsing behavior—only activity related to explicit use of extension features is tracked.

Website Content

When you use our AI features, we collect:

  • Email content: Text and HTML content from Gmail/Outlook email messages
  • Email structure: Email thread structure, message relationships

This content is read from Gmail/Outlook pages when you explicitly use our features, sent to our backend API servers for AI processing, and processed in real-time. Only metadata about processing is logged, not the actual content.

Information We Do NOT Collect

We do NOT collect the following types of information:

🏥

Health information

We do not collect any health-related data

💳

Financial information

Payment processing is handled separately and not accessed by the extension

📍

Location data

We do not collect GPS coordinates, IP addresses, or location tracking

🌐

Web browsing history

We do not collect or access your web browsing history

📧

Passive email reading

We only access email content when you explicitly use our AI features

How We Use Your Information

We use the collected information solely for the following purposes:

Providing AI-powered email assistance features (email generation, summarization, quick replies)
User authentication and account management
Usage quota management and enforcement
Service improvement and analytics
User experience optimization

We do NOT use your data for advertising, marketing, or any other purposes unrelated to the extension's core functionality.

Data Sharing and Third Parties

We do not sell or transfer user data to third parties, except in the following approved use cases:

🔒

Our backend API servers

User data is sent to our own backend API servers (api.mailmates.app) for processing

🤖

AI service providers

Email content is sent to AI service providers (such as OpenAI) for processing, which is necessary for the core functionality

☁️

Firebase

We use Firebase for authentication and data storage, which is necessary for providing the Service

We do not share user data with advertisers, marketing companies, or any other third parties for purposes other than providing the extension's core AI email features.

Data Storage and Security

💾Storage

Local storage

Authentication tokens, user profile data, and settings are stored locally in your browser's extension storage (chrome.storage.local)

Backend storage

User account information, usage logs, and preferences are stored on secure backend servers (Firebase Firestore)

🔐Security

All API communications use HTTPS encryption
Authentication tokens are stored securely and automatically refreshed
Email content is transmitted securely to backend servers for processing

⏱️Data Retention

User data is retained as long as your user account is active. You can request data deletion at any time by contacting us at mailmates.app@gmail.com.

Your Rights and Control

You have the following rights regarding your data:

🚪

Sign out

Clear all locally stored authentication data at any time

⚙️

Account management

Manage your account and preferences through the web application

🗑️

Data deletion

Request deletion of your data by contacting us

Opt-out

Stop using the extension at any time to prevent further data collection

Chrome Web Store Compliance

This extension complies with Chrome Web Store Developer Programme Policies:

We do not sell or transfer user data to third parties, apart from approved use cases
We do not use or transfer user data for purposes unrelated to the extension's single purpose
We do not use or transfer user data to determine creditworthiness or for lending purposes

Contact Us

If you have any questions about this Privacy Policy, please contact us:

mailmates.app@gmail.com

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date. You are advised to review this Privacy Policy periodically for any changes.