Last updated: February 14, 2026
By accessing or using the Mailtron email platform and related services ("Service"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, you may not use the Service.
If you are using the Service on behalf of an organization, you represent and warrant that you have the authority to bind that organization to these Terms.
Mailtron provides an email platform that includes sending and receiving email, end-to-end encryption, AI-assisted email features, custom domain hosting, contact management, calendar integration, and related functionality. The specific features available to you depend on your subscription plan.
To use the Service, you must create an account. You agree to:
You must be at least 16 years old to create an account. If you are under 18, you represent that your parent or legal guardian has reviewed and agreed to these Terms.
You agree not to use the Service to:
We reserve the right to suspend or terminate accounts that violate these acceptable use policies.
The Free plan is available at no cost and includes the features described on our Pricing page. We reserve the right to modify Free plan features with 30 days' notice.
Paid subscriptions are billed monthly or annually, as selected at the time of purchase. Prices are listed on our Pricing page and are subject to change with 30 days' notice.
You may cancel your subscription at any time. Upon cancellation:
We offer a 14-day money-back guarantee for new paid subscriptions. Refund requests after 14 days are evaluated on a case-by-case basis.
Prices are exclusive of applicable taxes. You are responsible for any taxes associated with your subscription, except for taxes based on our net income.
The Service, including its design, code, features, and branding, is owned by Mailtron and protected by intellectual property laws. You retain ownership of all content you create and send through the Service.
You grant Mailtron a limited license to process your data solely for the purpose of providing the Service. Due to our zero-knowledge architecture, this processing is limited to encrypted data that we cannot read.
Your privacy is governed by our Privacy Policy, which is incorporated into these Terms by reference. By using the Service, you consent to the collection and use of data as described in the Privacy Policy.
You are solely responsible for your encryption keys. Mailtron's zero-knowledge architecture means that we do not have access to your private keys and cannot recover them if lost. If you lose your encryption keys and have not set up a recovery method, your encrypted data will be permanently inaccessible.
We strongly recommend setting up a recovery phrase during account creation.
We may suspend or terminate your access to the Service if:
Upon termination, you will have 30 days to export your data. After 30 days, your encrypted data will be permanently deleted.
THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
We do not warrant that the Service will be uninterrupted, error-free, or completely secure. While we implement industry-leading security measures, no system is perfectly immune to all threats.
TO THE MAXIMUM EXTENT PERMITTED BY LAW, MAILTRON SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, INCLUDING BUT NOT LIMITED TO LOSS OF PROFITS, DATA, OR BUSINESS OPPORTUNITIES, ARISING OUT OF OR IN CONNECTION WITH YOUR USE OF THE SERVICE.
OUR TOTAL LIABILITY FOR ANY CLAIMS ARISING UNDER THESE TERMS SHALL NOT EXCEED THE AMOUNT YOU PAID US IN THE 12 MONTHS PRECEDING THE CLAIM.
You agree to indemnify and hold harmless Mailtron, its officers, directors, employees, and agents from any claims, damages, losses, or expenses (including reasonable attorney's fees) arising from your use of the Service or violation of these Terms.
These Terms shall be governed by and construed in accordance with the laws of the State of Delaware, United States, without regard to its conflict of law provisions. Any disputes arising under these Terms shall be resolved in the courts located in Delaware.
We may update these Terms from time to time. We will notify you of material changes by email and/or a prominent notice on our website at least 30 days before the changes take effect. Your continued use of the Service after the changes take effect constitutes your acceptance of the revised Terms.
If you have questions about these Terms, please contact us: