Terms of Service
Last updated: April 18, 2026
1. Agreement to Terms
By accessing or using the OutMass Chrome extension and related services ("Service"), operated by Metis Information Technologies Ltd ("Company", "we", "us"), you agree to be bound by these Terms of Service. If you do not agree, do not use the Service.
2. Description of Service
OutMass is a Chrome extension that enables users to send bulk personalized email campaigns through Microsoft Outlook Web (outlook.office.com). The Service includes mail merge, email tracking, automated follow-ups, and campaign management features.
3. Account Registration
To use OutMass, you must authenticate with your Microsoft account via OAuth 2.0. You are responsible for maintaining the security of your account credentials and for all activities under your account.
4. Acceptable Use
You agree to use the Service only for lawful purposes. The following activities are strictly prohibited:
- Sending unsolicited bulk email (spam)
- Sending emails that violate CAN-SPAM, GDPR, or other applicable anti-spam laws
- Using purchased, rented, or scraped email lists
- Sending phishing, malware, or fraudulent content
- Impersonating another person or entity
- Attempting to circumvent rate limits or usage quotas
- Using the Service to harass, threaten, or abuse others
- Reverse engineering, decompiling, or disassembling the Service
We reserve the right to suspend or terminate accounts that violate these terms without notice.
5. Subscriptions and Payments
OutMass offers a free tier and paid subscription plans. Paid plans are billed monthly through Stripe. By subscribing, you authorize us to charge your payment method on a recurring basis until you cancel.
- Prices are listed in USD and exclude applicable taxes.
- You may cancel your subscription at any time from your account settings.
- Upon cancellation, you retain access until the end of your current billing period.
- We reserve the right to change pricing with 30 days' notice.
6. Free Tier Limits
The free tier is limited to 50 emails per month. Usage is tracked per calendar month and resets on the first day of each month.
7. Refunds
We offer a 30-day money-back guarantee for paid subscriptions. See our Refund Policy for full details.
8. Intellectual Property
The Service, including all code, design, and content, is owned by Metis Information Technologies Ltd and protected by intellectual property laws. You are granted a limited, non-exclusive, non-transferable license to use the Service for its intended purpose.
9. Privacy
Your use of the Service is also governed by our Privacy Policy, which describes how we collect, use, and protect your data.
10. Microsoft Graph API and Platform Limits
OutMass sends emails through Microsoft Graph API using your own Microsoft account. We do not store the content of your emails on our servers. You are responsible for complying with Microsoft's terms of service when using Outlook.
Microsoft enforces sending limits that apply in addition to our plan quotas:
- Outlook.com (personal accounts): approximately 300 emails per day
- Microsoft 365 Business: approximately 10,000 emails per day
- Exchange Online: 30 messages per minute throttling
- Microsoft may update these limits without notice
Our stated monthly quotas (50, 2,000, or 10,000 emails depending on plan) represent the maximum we allow under your subscription. Actual deliverable volume is subject to Microsoft's platform limits, your account type, account reputation, and recipient engagement. We cannot guarantee delivery of any specific number of emails, and we cannot override Microsoft's rate limits or throttling. If your Microsoft account is throttled, suspended, or rate-limited, OutMass delivery will be affected accordingly, and no refund is owed for emails not sent due to Microsoft platform restrictions.
11. Disclaimer of Warranties
The Service is provided "as is" and "as available" without warranties of any kind, express or implied. We do not guarantee uninterrupted, error-free, or secure operation of the Service.
12. Limitation of Liability
To the maximum extent permitted by law, Metis Information Technologies Ltd shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising from your use of the Service. Our total liability shall not exceed the amount you paid us in the 12 months preceding the claim.
13. Termination
We may suspend or terminate your access to the Service at any time for violation of these terms. You may delete your account at any time directly from the OutMass sidebar (Account tab → Danger Zone → Delete my account), or by contacting us. Upon termination, your personal data will be deleted in accordance with our Privacy Policy; an anonymised audit record is retained for legal and fraud-prevention purposes as described in Section 7 of that policy.
Deleting the OutMass extension from Chrome does not automatically cancel any paid subscription. To end billing, cancel your subscription via Manage Subscription before or after extension removal.
14. Changes to Terms
We may update these terms from time to time. We will notify you of material changes via email or through the Service. Continued use after changes constitutes acceptance of the new terms.
15. Governing Law
These terms are governed by the laws of England and Wales. Any disputes shall be resolved in the courts of England and Wales, without prejudice to any mandatory consumer protection rights you may have under the law of your country of residence.
16. Contact
If you have questions about these terms, contact us at:
Email: support@getoutmass.com
Company: Metis Information Technologies Ltd
Registered in England and Wales, company number 17114932
Registered office: 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ, United Kingdom