# EmailShield

> EmailShield is an email verification and list-cleaning service for cold email: upload a list (or call the REST API) and every address is checked against its mail server without sending an email, then labelled safe to send, risky or invalid.

Key facts:
- App: https://app.emailshield.co. API base URL: https://app.emailshield.co/api (endpoints under /api/v1/), auth header X-API-Key: evf_…; any paid account (plan or top-up) has API access.
- Bulk: POST /api/v1/verify/bulk, up to 50,000 addresses per call; poll GET /api/v1/jobs/{job_id} until terminal is true. Read details.primary_label + details.tags on results, not the per-row status.
- One credit verifies one unique address; duplicates and malformed addresses are free; unknown results are refunded when the job finishes.
- Support: in-app chat, Slack https://slack.emailshield.co, Telegram @ScalingRoomSupportBot.

## Documentation Sets

- [Abridged documentation](https://docs.emailshield.co/llms-small.txt): a compact version of the documentation for EmailShield, with non-essential content removed
- [Complete documentation](https://docs.emailshield.co/llms-full.txt): the full documentation for EmailShield

## Notes

- The complete documentation includes all content from the official documentation
- The content is automatically generated from the same source as the official documentation