About

Horn Horizon

Horn Horizon helps developers interpret Cloudflare Email Service send attempts across Workers bindings, REST and SMTP. It checks non-secret metadata and explains the next evidence to collect.

Sources and scope

Implementation notes are checked against the sources linked from each guide. The checker reports only the checks it actually performs; it does not certify production readiness.

Product relationships

WebTraceCheck and CleanTempMail are operated by the same operator as this site. They are optional tools for the testing steps described here. You can use your own browser and test inbox.

Independent tool. Not affiliated with Cloudflare. This site does not represent a former organisation associated with this domain.

Corrections: support@cleantempmail.com.