Acceptable Use Policy

Effective from 11 November 2026

What you may and may not send through Blindrelay. This policy is incorporated into the Terms of Service.

1. Transactional email only

Blindrelay is for transactional email — messages triggered by and directly related to your product's operation (receipts, resets, notifications, alerts). Bulk marketing email is outside the service's intended use.

2. No unsolicited email

You must send only to recipients who have a relationship with you and to whom your message is relevant. You must honor unsubscribe requests and provide a valid physical postal address and a functional unsubscribe mechanism where required by law (e.g. CAN-SPAM, GDPR).

3. No purchased or rented lists

Recipient lists obtained through purchase, rental, scraping, or other non-consensual collection are prohibited. Such lists generate complaints and bounces that harm deliverability for everyone.

4. Reputation and abuse signals

We monitor complaint rates, bounce rates, and sending patterns. Accounts whose signals exceed plan thresholds may be automatically suspended. This protects shared deliverability for all customers. A person reviews an automatic suspension on request.

5. Prohibited content

You may not send content that is illegal, infringing, malicious, deceptive, or harmful — including malware, phishing, fraud, sexually exploitative material, or content that promotes violence or harm. You remain solely responsible for the content you send.

6. Authentication and identity

You must send only from sending domains you own or are authorized to use. You must not forge headers, spoof sender identity, or attempt to disguise the origin of a message.

7. No service abuse

You may not attempt to overload, reverse-engineer, circumvent rate or abuse limits on, or otherwise disrupt the service. Automated probing of the API for vulnerabilities is prohibited.

8. Compliance with law

You are responsible for compliance with all applicable laws in the jurisdictions you send to, including data protection, anti-spam, and export laws. You are the data controller for the messages you send.

9. Enforcement

Violations may result in content rejection, throttling, suspension, or termination of your account, with or without notice depending on severity. See Terms of Service section 5. Serious violations may be reported to the relevant authorities.

See also: Terms of Service and Privacy Policy .

Operator

PERFEKTECO s.r.o., Heydukova 412/10, Libeň, 180 00 Praha 8, Czech Republic · IČO 05496641 · DIČ CZ05496641 · registered with the Municipal Court in Prague, file C 264658 · info@blindrelay.app