Understanding unknown Result from MillionVerifier API Responses

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When i run the HTTP API for MillionVerifier in my Clay table i get 4 different results: "ok", "catch_all", "invalid", "unknown" The "unknown" result is not an option in MillionVerifier, so i'm wondering what does that mean and where does it come from? Anyone who knows why that is? And what it means?

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7 comments

Ariful A.
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My pleasure!
Ivan D.
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Got it, thanks!
Ariful A.
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In the sense that both mean you can’t get a definite valid or invalid, they’re similar but the reason for failure is different. Catch-all is when the server accepts all emails, even if the mailbox doesn’t exist, while unknown is when no reliable response was received at all.
Ariful A.
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Ivan D. "unknown" also comes from million verifier. That says it tried to verify but failed due to temporary error and didn't get a definite response if it's valid or not.
Ivan D.
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Pretty much somewhat similar to catchall right?
Valentin
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means millionverifier wasn't able to verify that email
Valentin
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it is an option: https://developer.millionverifier.com/#operation/single-verification

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Ariful A.
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My pleasure!
Ivan D.
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Got it, thanks!
Ariful A.
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·
In the sense that both mean you can’t get a definite valid or invalid, they’re similar but the reason for failure is different. Catch-all is when the server accepts all emails, even if the mailbox doesn’t exist, while unknown is when no reliable response was received at all.
Ariful A.
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Ivan D. "unknown" also comes from million verifier. That says it tried to verify but failed due to temporary error and didn't get a definite response if it's valid or not.
Ivan D.
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Pretty much somewhat similar to catchall right?
Valentin
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means millionverifier wasn't able to verify that email
Valentin
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it is an option: https://developer.millionverifier.com/#operation/single-verification