Legal

Terms of Use

Effective date: 26 July 2026 · Applies to the Mailie Pro Android application and the mailie.pro website.

1. The agreement

These Terms of Use (“Terms”) form a binding agreement between you and Mailie Pro (“we”, “us”, “our”) and govern your access to and use of the Mailie Pro Android application (the “App”) and the website at mailie.pro (the “Site”). By installing, accessing or using the App, or by using the Site, you agree to these Terms. If you do not agree, do not install or use the App and do not use the Site.

Our Privacy Policy is incorporated into these Terms by reference and describes how we handle personal data.

Please read section 15 (Disclaimer of warranties) and section 16 (Limitation of liability) carefully. They limit our liability to you. Nothing in these Terms excludes or limits any liability or right that cannot lawfully be excluded or limited, and if you are a consumer you keep all mandatory rights your local law gives you.

2. Definitions

  • Content” means any data you access, create, store, send or receive using the App, including email messages, attachments, contacts and calendar data.
  • Mail Service” means any email or directory service you choose to connect the App to, including its servers and its provider.
  • AI Output” means any text or classification produced by the App’s on-device artificial-intelligence features, including briefings, summaries, suggested replies, drafts, rewrites, translations, extracted text, categories and answers.
  • Store” means Google Play.

3. Eligibility

You must be at least the age of majority in your jurisdiction, or have the consent of a parent or legal guardian, and be legally capable of entering into this agreement. You must not be a person barred from receiving the App under applicable export-control or sanctions law. You are responsible for complying with all laws applicable to your use of the App and the Site.

4. Licence to use the App

Subject to these Terms and your payment of any applicable price, we grant you a personal, limited, non-exclusive, non-transferable, non-sublicensable, revocable licence to install and use the App on devices you own or control, for your own personal or internal business use.

You may not, and may not permit anyone else to:

  • copy, sell, sublicense, rent, lease, lend, distribute or otherwise make the App available to any third party;
  • modify, adapt, translate or create derivative works of the App;
  • reverse engineer, decompile or disassemble the App, or attempt to derive its source code, except to the extent that applicable law expressly permits this despite this limitation and only after you have asked us for the information you need;
  • remove, obscure or alter any proprietary notice, mark or attribution;
  • use the App to build, train or evaluate a competing product or service; or
  • circumvent any licensing, security or usage control.

All rights not expressly granted are reserved to us and our licensors.

5. Intellectual property

The App, the Site, and all associated software, content, designs, text, graphics, logos and trademarks — including the “Mailie Pro” name and logo — are owned by us or our licensors and are protected by copyright, trademark and other intellectual-property laws. These Terms grant you a licence, not a sale, and no ownership passes to you.

Your Content remains yours. We claim no ownership of, and acquire no licence to, your Content. We have no access to it.

The App and Site incorporate open-source components, which remain governed by their respective licences. Those licences prevail over these Terms to the extent of any conflict in respect of those components. A complete list of open-source components and their licence texts is available within the App under About › Open-source licences.

All third-party names and marks referred to on the Site — including Google, Gmail, Google Play, Android, Microsoft, Outlook, Proton and Thunderbird — are the property of their respective owners and are used for identification and comparison only. Their use does not imply any affiliation with, sponsorship by, or endorsement from those owners.

6. Purchases, billing and refunds

The App is distributed and sold through Google Play. When you purchase the App, Google is the seller and merchant of record: your payment, applicable taxes and any refund are processed and governed by the Google Play Terms of Service and Google’s policies, not by us. We do not receive or process your payment details.

Mailie Pro is offered as a one-time purchase. There is no subscription and no recurring charge, and we do not gate features behind a further payment. Prices may change for future purchases; a change never affects a purchase already made. Refund eligibility is determined by Google Play’s refund policy and by any mandatory consumer law that applies to you — including, in the EEA and United Kingdom, any statutory right of withdrawal, which you exercise through Google Play.

7. Your accounts, credentials and data

The App connects to Mail Services that you provide, choose and control. You are solely responsible for:

  • the accuracy of the server settings and credentials you enter;
  • the confidentiality of your credentials and the physical and logical security of your devices, including your device passcode and biometric enrolment;
  • maintaining your own backups of anything you cannot afford to lose; and
  • your compliance with the terms of each Mail Service you connect to.

We cannot recover your data. Because your Content, your credentials, your encryption keys and your backup passphrases exist only on your device and are never transmitted to us, we cannot access, restore, decrypt or reset any of them. If you lose your device, your passphrase or your keys, the associated data may be permanently unrecoverable. This is a deliberate property of the design and a direct consequence of the privacy guarantees described in the Privacy Policy.

Where you connect a Google account, your use of that account remains subject to your agreement with Google. You may revoke the App’s access at any time at myaccount.google.com/permissions.

8. Third-party services

The App and Site interoperate with third-party services that you choose or that we rely on, including your Mail Service, Google Play, Google services used for optional on-device model downloads, public model repositories, any masked-alias provider you configure, any UnifiedPush distributor you configure, any CardDAV server you enable, any proxy you route through, and — where enabled on the Site — a spam-protection provider.

We do not control and are not responsible for those services, their availability, their content, their security or their practices. Your use of them is governed by their own terms and privacy policies, and any dispute concerning them is between you and that provider. A reference to a third-party service in the App or on the Site is not an endorsement.

9. Artificial-intelligence features

The App includes features powered by artificial-intelligence models that run on your device. Because those features shape how you read and answer your mail, the following terms apply specifically to them and prevail over any more general statement elsewhere.

  • AI Output is a draft, not a determination. It is generated by a statistical model and may be inaccurate, incomplete, outdated, misleading or omit something important — even when it appears confident and well written. The App applies verification measures intended to keep output grounded in your actual messages, but no such measure is infallible and we do not warrant that AI Output is accurate.
  • Always check the original. You must verify any material detail — dates, times, amounts, names, addresses, account numbers, links and obligations — against the original message before relying on it or acting on it. Every AI feature links back to the source for exactly this purpose.
  • Not professional advice. AI Output is not legal, financial, tax, medical, security or other professional advice, and must not be treated as such or as a substitute for a qualified professional.
  • You remain responsible for what you send. You are solely responsible for reviewing, editing and approving any draft, reply, translation or other AI Output before you send it, and for everything you send from your accounts.
  • Safety features are advisory. Phishing, scam, spam-similarity, compromised-sender and pre-send checks are heuristic aids. They may produce false positives and false negatives, they never act on your behalf, and they are not a substitute for your own judgement or for anti-malware software. The attachment check inspects metadata only and is expressly not a virus scan.
  • Availability varies. AI features depend on your device’s hardware, memory, thermal state and available storage, and on which models you have installed. Some features may be unavailable, slower, or degrade to a simpler engine on some devices. This is expected behaviour and not a defect.
  • Nothing leaves the device. Your Content and prompts are processed locally and are not transmitted to us or to any AI provider, and are never used to train any model. See the Privacy Policy.
  • Model licences. Language and machine-learning models you download are supplied by third parties under their own licences, which you accept when you download them and which govern your use of those models.

To the maximum extent permitted by law, we accept no liability for AI Output or for any act or omission taken in reliance on it.

10. Security features and their limits

The App implements transport encryption, certificate pinning, encrypted DNS, encrypted local storage, hardware-backed key storage, optional proxy routing and optional end-to-end encryption. These reduce risk; they do not eliminate it.

We do not warrant that the App is impenetrable, that a given configuration will defeat any particular adversary, or that end-to-end encryption will protect you where the recipient, the recipient’s device or your own device is already compromised. Metadata such as the fact and timing of a message is not concealed by message encryption. The security of your mail also depends on your Mail Service, your network, your device and your own practices, none of which we control.

11. Acceptable use

You agree not to use the App or the Site to:

  • violate any law or regulation, or the rights of any person;
  • send spam, unsolicited bulk messages, phishing, malware or other harmful content;
  • transmit unlawful, infringing, defamatory, harassing or abusive material;
  • access, or attempt to access, any account, system or data without authorisation;
  • probe, scan, overload, disrupt or otherwise interfere with the App, the Site or their infrastructure, or with any Mail Service;
  • circumvent any security measure, rate limit or usage control; or
  • impersonate any person or misrepresent your affiliation with anyone.

Automated scanning or probing of the administrative interface of the Site is prohibited and is logged. We may block addresses that engage in abusive traffic. Good-faith security research conducted in accordance with the reporting process in section 22 is not a breach of this section.

12. Encryption and export control

The App contains and uses cryptographic functionality. You are responsible for ensuring that your download, installation, use and export of the App complies with all applicable export-control, import and sanctions laws, including any local restriction on the use of encryption. You represent that you are not located in, and are not a national or resident of, any country or on any list that would make such provision unlawful.

13. Availability, updates and support

We may modify, update, suspend or discontinue the App, the Site, or any feature of either, at any time. We will not deliberately remove a material feature you have paid for without a reasonable basis, and where a change is material we will seek to give reasonable notice. Updates may be required for continued operation, security or compatibility, and may be delivered through the Store.

Support is provided on a reasonable-efforts basis through the channels in section 22. We do not commit to any service level, response time or uptime for the Site, and the Site may be unavailable for maintenance or for reasons beyond our control.

14. Feedback

If you send us suggestions, ideas or feedback about the App or the Site, you grant us a perpetual, irrevocable, worldwide, royalty-free licence to use it without restriction or obligation to you. Please do not send us anything you consider confidential, and please do not include the contents of your mail in a support request unless you intend us to see it.

15. Disclaimer of warranties

To the maximum extent permitted by law, the App and the Site are provided “as is” and “as available”, without warranties or conditions of any kind, whether express, implied or statutory, including any implied warranty of merchantability, satisfactory quality, fitness for a particular purpose, accuracy, title or non-infringement, and any warranty arising from course of dealing or usage of trade.

Without limiting the above, we do not warrant that the App or the Site will be uninterrupted, timely, error-free or completely secure; that defects will be corrected; that any message will be delivered, received, retained or deleted successfully; that AI Output will be accurate; or that any security or safety feature will detect or prevent any particular threat.

Some jurisdictions do not allow the exclusion of certain warranties, so some or all of the above may not apply to you, and you may have additional rights under mandatory consumer law.

16. Limitation of liability

To the maximum extent permitted by law, we will not be liable for any indirect, incidental, special, consequential, exemplary or punitive damages, or for any loss of or corruption of data, loss of profits, revenue, goodwill, business or anticipated savings, or for any failure to send, receive or retain a message, arising out of or relating to the App, the Site or these Terms, whether in contract, tort (including negligence), strict liability or otherwise, and even if we have been advised of the possibility of such damages.

To the maximum extent permitted by law, our total aggregate liability for all claims relating to the App or the Site will not exceed the greater of (a) the amount you actually paid for the App in the twelve months preceding the event giving rise to the claim, or (b) twenty-five United States dollars (USD 25).

Nothing in these Terms excludes or limits our liability for death or personal injury caused by our negligence, for fraud or fraudulent misrepresentation, or for any other liability that cannot lawfully be excluded or limited. If you are a consumer, these limitations apply only to the extent permitted by the law of your country of residence, and your mandatory statutory rights are unaffected. Some jurisdictions do not allow certain limitations, so some may not apply to you.

The allocation of risk in this section and in section 15 is a fundamental basis of the bargain between us and is reflected in the price of the App.

17. Indemnification

You agree to indemnify and hold us harmless from any third-party claim, liability, damage, loss or expense (including reasonable legal fees) arising out of your misuse of the App or the Site, your Content, or your breach of these Terms or of any applicable law — except to the extent the claim arises from our own breach, negligence or wilful misconduct. If you are a consumer, this section applies only to the extent permitted by the law of your country of residence.

18. Term and termination

These Terms apply for as long as you use the App or the Site. We may suspend or terminate your access if you materially breach these Terms, or where necessary to protect the App, the Site or other users, and where practicable we will give notice and an opportunity to remedy. You may end this agreement at any time by ceasing to use the Site and uninstalling the App; uninstalling destroys the data held on your device.

Termination does not entitle you to a refund except as required by Google Play’s policies or by mandatory law. Sections 5, 7, 9, 14, 15, 16, 17, 20 and 21, and any other provision that by its nature should survive, survive termination.

19. Changes

We may update these Terms from time to time — for example to reflect new features, or a change in law. We will revise the effective date above, and material changes take effect when posted. Where a change is material we will make reasonable efforts to bring it to your attention. Your continued use after a change takes effect constitutes acceptance; if you do not accept a change, you must stop using the App and the Site.

20. Governing law and disputes

These Terms, and any non-contractual obligation arising out of or in connection with them, are governed by the laws of the jurisdiction in which Mailie Pro has its principal place of business, without regard to its conflict-of-laws rules. The courts of that jurisdiction have non-exclusive jurisdiction over any dispute arising from the App, the Site or these Terms.

If you are a consumer, this does not deprive you of the protection of the mandatory provisions of the law of your country of residence, and does not remove your right to bring proceedings in the courts of that country. Consumers in the European Union may also use the European Commission’s online dispute-resolution platform.

Please contact us first. Before commencing any formal proceedings, you agree to contact us at legal@mailie.pro and allow us thirty (30) days to resolve the matter informally. This requirement does not prevent either party from seeking urgent injunctive relief, and does not apply where it would cause a limitation period to expire.

21. General

  • Entire agreement. These Terms and the Privacy Policy are the entire agreement between you and us regarding the App and the Site, and supersede any prior understanding on that subject.
  • Severability. If any provision is held unenforceable, it will be modified to the minimum extent necessary to make it enforceable, or if that is not possible, severed; the remaining provisions stay in full effect.
  • No waiver. Our failure to enforce a provision is not a waiver of it, and no waiver is effective unless in writing.
  • Assignment. You may not assign or transfer these Terms without our prior written consent. We may assign them in connection with a merger, acquisition or sale of assets, on notice to you.
  • No third-party beneficiaries. Nothing in these Terms confers any right on any person who is not a party to them, except that the Store may enforce section 6 against you as a third-party beneficiary.
  • Force majeure. Neither party is liable for a failure to perform caused by an event beyond its reasonable control.
  • Notices. We may give notice through the App, the Site or the Store. You give notice to us at the addresses in section 22.
  • Language. These Terms are made in English. Any translation is provided for convenience only, and the English version prevails in the event of a conflict.

22. Contact