Terms of Service

Adlerwacht lets a sending organization route email attachments through a gateway to us, and lets the intended recipient securely retrieve that attachment after authenticating with a passkey. For a first-time recipient, that also includes a one-time phone verification call to a number the sending organization vouches for, placed through a third-party telephony provider. We do not send email on your behalf and we do not inspect the content of attachments passing through the service.

Accounts are created and secured exclusively using WebAuthn passkeys (a device biometric, security key, or platform authenticator) — we do not support passwords, and we cannot recover access for you if you lose every registered passkey and have no other registered credential. Keep at least one backup authentication method registered where your device supports it.

You agree not to use the service to transmit unlawful content, to attempt to access another user's account or attachments, to circumvent any access control, or to interfere with the operation of the service.

If you or your organization sends attachments through our gateway, you are responsible for having a lawful basis to send that content to the intended recipient, and for the accuracy of the recipient address and, where you supply one for phone verification, the recipient phone number you provide. You act as our customer and the recipient's involvement with the service is a necessary consequence of your use of it.

Paid plans are billed according to the pricing and billing terms presented at signup or in your account's billing settings. Your trial, plan changes, payment, refunds, and what happens if you cancel or an invoice goes unpaid are all covered in detail in our Cancellation Policy, which forms part of these Terms.

We do not open, scan, or otherwise inspect the content of attachments transmitted through the service. We are not able to detect, and are not responsible for, unlawful, harmful, or malicious content transmitted by a sending organization. Sending organizations are solely responsible for the content they route through the service.

The generators available at Adlerwacht/tools — for SPF, DMARC, and DKIM — are free, standalone utilities, provided as a convenience and not part of the paid service. They format a DNS record (and, for the DKIM generator, produce a cryptographic key pair generated locally in your own browser) based on the options you choose. They do not audit your domain, do not verify that the output is correct for your specific mail setup, and do not constitute professional advice. You are solely responsible for reviewing, testing, and deploying anything you generate before publishing it to DNS or your mail server — a misconfigured SPF, DMARC, or DKIM record can cause legitimate mail to be rejected, quarantined, or marked as spam, and can affect systems entirely outside our control. By using these tools, you acknowledge and agree that we accept no liability of any kind, whether in contract, tort, or otherwise, for any loss, damage, deliverability issue, security incident, or other consequence arising from your use of the generated output, to the maximum extent permitted by applicable law — in addition to, not instead of, the general disclaimer of warranties and limitation of liability elsewhere in these Terms. If you need a guarantee, indemnification, or professional accountability for your domain's email security configuration, engage a qualified professional, or talk to us about our paid Email Security service. These free tools are exactly that: free, and offered without any obligation on our part.

We may modify, add to, or discontinue any part of the service at any time, with or without notice — for example if we redesign a feature or it becomes impractical to keep supporting it. If we change pricing for an existing paid organization, we'll give at least 30 days' notice by email before the new price applies.

You can cancel your account, or an organization admin can revoke a member's access, at any time — see our Cancellation Policy for exactly how and when that takes effect. We may also suspend or terminate access for violating these Terms or applicable law. On termination of an organization's account, associated attachments and sender-linked data are deleted as described in our Cancellation Policy and Privacy Policy.

The service is provided "as is" without warranties of any kind, express or implied, to the maximum extent permitted by applicable law.

To the maximum extent permitted by applicable law, we are not liable for indirect, incidental, or consequential damages arising from your use of the service. Nothing in these terms limits liability that cannot be limited under applicable law, including mandatory consumer-protection law that may apply to you.

We're operated by a company established in Japan, and these Terms — along with any dispute arising from them or from your use of the service — are governed by the laws of Japan, without regard to its conflict-of-laws rules. Japan's courts, and specifically the Fukuoka District Court (Kokura Branch) as the court of first instance, have exclusive jurisdiction over any such dispute. This does not take away any mandatory consumer-protection rights you have under the law of your own home jurisdiction, including EU member states — those continue to apply regardless of the governing law chosen here.

We may update these terms as our service evolves. The version number and effective date at the top of this page reflect the terms currently in force. Continued use of the service after a change takes effect constitutes acceptance of the updated terms; for material changes, we will take reasonable steps to notify active accounts.

Questions about these terms can be sent to terms@adlerwacht.com.