We’re a small team and we read everything. Picking the right channel gets you a faster answer.
Need more limits?
Free accounts get 100 checks a day, rising to 1,000 a day automatically after 7 clean days. Need more than that? Contact us: use Request higher limits in your dashboard, or email hello@isbusinessemail.com with your use case and expected daily volume. See Rate limits for all tiers.
Where to write
| Topic | Best channel |
|---|---|
| General questions, partnerships, integrations | hello@isbusinessemail.com |
| Higher limits (tier 2 and above) | The Request higher limits button in your dashboard, or hello@isbusinessemail.com with your use case and expected daily volume |
| A wrong verdict | POST /v1/feedback, Report wrong verdict in the dashboard, or the report link on any /check/<domain> page |
| Privacy and data requests (access, deletion, DPA) | privacy@isbusinessemail.com |
| Security vulnerabilities | security@isbusinessemail.com; see Security |
| Service status | status.isbusinessemail.com |
Help us help you
For API problems, include:
- the
request_idfrom the response (or the time, in UTC, and the endpoint) - the HTTP status and the error
code - your key’s prefix only, never the full key
Please don’t send full lists of your users’ email addresses. A domain is usually enough.
Company
Tilfortis MB · Lithuania