Video transcript

1. 00:00Intro

   Here is how to tell whether a domain accepts mail for any address. A catch-all domain accepts mail for any address, even one that belongs to nobody. So a yes from the server tells you very little. This verifier answers that one question. It is free, there is no signup, and you get 20 checks every 24 hours. Enter an address on the domain you want to test, then click Detect catch-all.

2. 00:25Read the result

   This domain comes back as catch-all. It appears to accept anything before the at sign. So an SMTP accept does not prove the person exists. Treat deliverability as uncertain.

3. 00:36What to do with it

   Catch-all is not the same as invalid. So don't delete the whole group. Segment it by confidence. Be careful with guessed addresses. If you built first name dot last name yourself, the domain can't confirm it. Look for a second source tied to the person. And recheck older results before an important campaign. A provider migration can change catch-all behavior.

4. 00:56Get started free

   20 free credits every day you use your account, up to 600 a month. No credit card required. Start at billionverify.com.

Featured in this video