BillionVerify 說明中心
快速瞭解驗證結果、計費方式以及 BillionVerify 的運作原理。
關於 BillionVerify 的常見問題
瞭解各類結果的含義、何時扣除點數，以及信箱驗證的運作方式。
13 個答案
What do the verification statuses mean? (valid, invalid, catch-all, unknown, disposable, role)
Understand valid, invalid, catch-all, unknown, disposable, and role results, including which outcomes use credits.
服務商限制Why are iCloud (icloud.com / me.com / mac.com) addresses not marked "valid"?
Learn why iCloud, me.com, mac.com, and Hide My Email addresses return unknown instead of valid.
服務商限制Why are Outlook / Hotmail / Live addresses not marked "valid"?
Learn why personal Microsoft addresses return unknown and how Microsoft 365 business domains differ.
驗證結果What does an "unknown" result mean, and what should I do with it?
Unknown means the receiving mail system did not provide a reliable answer; it does not mean the address is bad.
驗證結果Why is an address marked catch-all instead of valid?
Catch-all means the domain accepts every recipient without confirming whether the specific mailbox exists.
驗證結果Why was an address I believe is active marked "invalid"?
Invalid is based on a concrete rejection from the receiving server, not a guess about the mailbox.
驗證結果What does the "score" in the result mean?
The 0.0–1.0 score reflects deliverability confidence and should always be read together with the status.
驗證結果Why did my result change when I re-verified the same address?
Cached results and temporary mail-server conditions can explain why a later verification returns a different status.
計費與點數Which results consume credits?
See which verification outcomes cost one credit and which results are always returned free of charge.
計費與點數Do you charge for disposable / temporary email addresses?
Disposable-domain detection is free unless you explicitly request and complete a full live SMTP verification.
計費與點數Am I charged again if I verify the same address twice?
Repeat checks for the same account and address are free within 24 hours unless you request a force refresh.
計費與點數Do my credits expire?
Purchased and bonus credits stay in your account until you use them, with no monthly reset or expiration date.
信任與隱私Does verification send a real email to the address?
Verification checks the receiving mail server but stops before transmitting any message body to the recipient.
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