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Help and resources for Mailprex.

Documentation

TopicLink
Getting startedIntroduction
Step-by-step setupIntegration
HTTP APIAPI Reference
npm SDKSDK v2
Self-hostSelf-host
BillingGumroad billing
Migrate tokens / v1Migration v2

Common issues

401 Invalid form token
Use the full mk_live_… token. Regenerate in the dashboard if you only saved the prefix.

429 Rate limit / quota
Free plan: 200 sends/month. Upgrade via dashboard when Gumroad is enabled.

Legacy UUID token
Dashboard shows a migration banner — click Regenerate secure token and update every site using the old value.

Community

Security

Report vulnerabilities per SECURITY.md on GitHub.

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