Last updated: March 17, 2026
By accessing or using SendexAPI (“the Service”), you agree to be bound by these Terms of Service and our Privacy Policy. If you do not agree, please do not use the Service. These Terms apply to all users including individuals, developers, and organisations accessing the Service via the dashboard or API.
SendexAPI provides an email infrastructure platform that allows you to send transactional and marketing email through a REST API. Features include:
We reserve the right to add, modify, or discontinue features at any time with reasonable notice.
The Service may only be used to send email to recipients who have given clear, explicit consent to receive communications from you. The following are strictly prohibited and will result in immediate account suspension:
No refunds for prohibited use. Credits consumed in connection with any prohibited activity — including spam, phishing, or any other violation of this section — are non-refundable. Sendex reserves the right to retain all fees paid in connection with a suspended or terminated account where prohibited use is found to have occurred.
You are responsible for maintaining the confidentiality of your account credentials, API keys, and any secrets generated through the Service. All activity that occurs under your account or API keys is your responsibility. You must notify us immediately at [email protected] if you suspect unauthorised access. API keys should never be exposed in client-side code or public repositories.
The Service operates on a prepaid credits model. Credits are deducted per email sent. Billing and payment processing is handled by our payment provider Polar. Unused credits do not expire but are non-transferable. Refunds for credits are issued at our discretion except in the case of a verifiable Service outage on our part. Credits consumed through prohibited use are non-refundable under any circumstances.
All accounts are subject to daily sending guidelines based on account tier. These are not hard blocks — they trigger automated AI review of sending content and patterns to detect abuse. Accounts may be automatically suspended if bounce rates exceed 4% over a 15-day window, or if AI content analysis determines that emails contain phishing, spam, or other prohibited content. Legitimate senders are not affected. If you believe a suspension was made in error, you may appeal by contacting support.
You may only send email from domains you own and have verified through the Service. By adding a domain you confirm you are authorised to configure DNS records for it. Sendex performs automated reputation checks on domains at the time of registration. Domains flagged by industry blocklists (including Spamhaus and Google Safe Browsing) will be rejected.
The Service, its interface, and underlying technology are the exclusive property of SendexAPI. You retain ownership of content you submit through the Service (email content, templates, contact data). By using the Service you grant us a limited licence to process and transmit that content solely for the purpose of providing the Service.
We may suspend or terminate your access immediately and without prior notice for any material breach of these Terms, including prohibited use. You may close your account at any time by contacting support. Upon termination, your API keys are revoked, queued sends are cancelled, and your data is retained for 30 days before deletion unless you request earlier removal.
To the fullest extent permitted by law, SendexAPI shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising from your use of, or inability to use, the Service — including email delivery failures, delays, or third-party provider outages. Our total liability shall not exceed the amount you paid for the Service in the 30 days preceding the event giving rise to the claim.
You agree to indemnify and hold harmless SendexAPI, its directors, employees, and partners from any claims, damages, or expenses (including legal fees) arising from your use of the Service, your violation of these Terms, or email content you send through the platform.
We reserve the right to modify these Terms at any time. We will notify users of material changes via email or a dashboard notice. Your continued use of the Service after the effective date constitutes acceptance of the updated Terms.
We collect the following categories of information:
We use the information we collect to:
Sendex uses automated AI systems to detect spam and phishing in emails sent through the platform. This analysis processes email subject lines and short text previews (up to 120 characters) only — full email bodies are not sent to AI systems. Subject and preview text may be transmitted to third-party AI providers (currently OpenRouter) for this purpose. This processing is conducted solely for abuse detection and the protection of all platform users.
We work with the following third-party providers to operate the Service. Each acts as a data processor under our instruction:
We do not sell your personal data to any third party.
When you manage audiences and contacts through the platform, you are the data controller for that contact data. You are responsible for ensuring you have a lawful basis for storing and emailing those contacts, and for honouring unsubscribe requests. Sendex processes this data solely to provide the Service to you.
We retain your account and sending data for as long as your account is active. Sent email records are retained to support delivery tracking, bounce monitoring, and audit purposes. Upon account deletion, data is removed within 30 days unless retention is required by law. You may request earlier deletion by contacting support.
We use session cookies to maintain your authenticated state in the dashboard. We do not use third-party advertising or tracking cookies. You can control cookies through your browser settings, though disabling session cookies will prevent you from signing in.
Email subjects, bodies, and previews are encrypted at rest. API keys are hashed and never stored in plaintext. All data is transmitted over TLS. We implement access controls, monitoring, and automated abuse detection to protect your data and the platform. No method of transmission or storage is 100% secure and we cannot guarantee absolute security.
Depending on your location, you may have rights to access, correct, delete, restrict, or export your personal data. To exercise these rights, contact us at the address below. We will respond within 30 days.
If you have questions about these policies or wish to exercise your data rights, contact us at [email protected].