This Privacy Policy explains how MultiMail, provided by Wuxxu s.r.o. (Poděbradská 777/9, Vysočany, 190 00 Praha, Czech Republic), collects, uses, and safeguards your information. Your privacy is our priority: MultiMail is built so that your email never passes through our servers.
The Short Version
- Your emails, credentials and cookies stay on your device. We never see, store, or transmit them.
- You sign in directly with your email provider (Gmail, Outlook, Yahoo, etc.) inside an isolated web view.
- We collect only minimal, anonymous usage data needed to keep the app working and improve it.
- We never sell your data.
Information We Do Not Collect
MultiMail acts as a secure container for the web versions of your email services. We do not collect, read, store or process:
- The content of your emails or attachments
- Your email addresses, passwords or authentication tokens
- Your contacts or calendar data
- Cookies or session data of your email accounts (these are stored locally, isolated per account)
Information We Collect
Anonymous usage data
To improve MultiMail, we collect anonymized diagnostic and usage information, such as app version, operating system version, crash reports, and aggregate feature usage (e.g. how many accounts are configured — never which ones). This data cannot be used to identify you.
Purchase information
Purchases are processed by the Microsoft Store. We receive confirmation of your purchase (license status) but never your payment card details.
Support communication
If you contact support, we receive the information you choose to share (e.g. your message and email address) and use it solely to resolve your request.
AI Features
If you choose to use optional AI-powered features (e.g. reply suggestions or summarization), the text you explicitly submit is processed by a third-party AI provider for the sole purpose of generating the result. It is not used to train models and is not stored by us. AI features are opt-in and can be disabled at any time.
Advertising (Free tier)
The free tier of MultiMail displays ads in the app's own interface (never injected into your email). Ads are contextual, not based on your email content — we cannot read it. Upgrading to Premium removes all ads.
Data Sharing
We do not sell, rent, or trade your information. We share data only with service providers necessary to operate the app (e.g. crash reporting, payment confirmation via Microsoft Store), and only the minimum required. All providers are bound by data-processing agreements.
Data Security
Account sessions are isolated from each other and stored locally using the operating system's security mechanisms. Communication between your device and your email provider is encrypted end-to-end by the provider (HTTPS) — MultiMail does not sit in the middle.
Your Rights
Under GDPR and similar regulations, you have the right to access, correct, or delete personal data we hold about you (which is minimal). Since your email data never reaches us, deleting the app removes all locally stored data. For any request, contact us via the Support page.
Children's Privacy
MultiMail is not directed at children under 16, and we do not knowingly collect data from them.
Changes to This Policy
We may update this Privacy Policy from time to time. Changes take effect when posted here, and material changes will be announced in the app.
Contact
Questions about privacy? Visit our Support page.

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