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Last updated: March 2026

Terms of Service

Agreement

By using AcornDMARC ("the Service"), you agree to these terms. The Service is operated by Grasshopper Signup LLC ("we", "us"). If you do not agree, do not use the Service.

What the Service does

AcornDMARC receives DMARC aggregate reports on your behalf, parses the XML data, and presents it in a web dashboard. The Service also sends optional email summaries. We do not send email on your behalf or modify your DNS records.

Your account

You are responsible for keeping your login credentials secure. You may add domains you own or are authorized to manage. Do not add domains you do not control. We reserve the right to remove domains or accounts that appear to be used for monitoring domains without authorization.

Acceptable use

Do not use the Service to:

  • Monitor domains you do not own or have authorization to manage.
  • Attempt to access other users' data or accounts.
  • Overwhelm the Service with automated requests beyond normal usage.
  • Use the data for any illegal purpose.

Service availability

We aim to keep the Service available, but do not guarantee uptime. The Service is provided "as is" without warranties of any kind. We may modify, suspend, or discontinue the Service at any time with reasonable notice.

Data and content

You retain ownership of the DMARC report data processed through your account. We do not sell your data. See the Privacy Policy below for details on what we collect and how we use it.

Limitation of liability

Grasshopper Signup LLC is not liable for any indirect, incidental, or consequential damages arising from your use of the Service. Our total liability is limited to the amount you paid us in the 12 months prior to the claim (which, for a free service, is zero).

Termination

You may delete your account at any time. We may terminate your account if you violate these terms. On termination, your data is deleted within 30 days.

Changes to these terms

We may update these terms. If we make material changes, we will notify you via email or a notice on the Service. Continued use after changes constitutes acceptance.

Governing law

These terms are governed by the laws of the State of Delaware, United States.

Contact

Questions about these terms? Contact us.

Privacy Policy

What we collect

Account information: Your email address, provided at signup. We use this to authenticate you and send email summaries.

DMARC report data: Aggregate reports sent to your AcornDMARC RUA address. These contain IP addresses, domain names, authentication results, and message counts from third-party mail providers. This is the core data the Service processes.

Usage data: Basic analytics about how you use the Service (pages visited, features used). We use Sentry for error tracking, which collects technical data like browser type and error details.

What we do not collect

  • Email content. DMARC aggregate reports contain metadata only, not message bodies or subject lines.
  • Passwords. We use passwordless (magic link) authentication.
  • Payment information. The Service is free.

How we use your data

  • To operate the Service: parse reports, display dashboards, send summaries.
  • To detect and fix issues with the Service (error tracking via Sentry).
  • To send you email summaries and notifications you have opted into.

We do not sell, rent, or share your personal data with third parties for marketing purposes.

Third-party services

We use third-party providers for hosting, email delivery, and error tracking. These providers process data only as necessary to deliver their services. We do not share more data than required.

Data retention

DMARC report data is retained as long as your account is active. If you delete your account, all associated data is deleted within 30 days.

Your rights

You can:

  • Access your data at any time through the dashboard.
  • Export your data by contacting us.
  • Delete your account and all associated data by contacting us.
  • Opt out of email summaries through your notification settings.

Cookies

The Service uses a session cookie for authentication and a localStorage value for your theme preference. We do not use tracking cookies or third-party advertising cookies.

Changes to this policy

We may update this policy. Material changes will be communicated via email or a notice on the Service.

Contact

Privacy questions? Contact us.

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