Submit
Check one address in a product flow or upload a complete list. API and bulk jobs share one result model.
The verification layer
A clear answer—and a clear reason.
Built for workflows where “unknown” is safer and more useful than a confident guess.
Verify
Layer syntax, domain, mail-exchange, mailbox, and risk signals without sending a message.
Decide
Use the verdict, reason code, and evidence to send, suppress, hold, or re-check—by a person or an agent.
validinvalidriskycatch-allunknown