Check whether an email address is real, active, and capable of receiving mail. BillionVerify detects fake and disposable addresses using SMTP verification in under 2 seconds. No signup, 100 free daily checks.
Enter any address to find out if it is real. BillionVerify checks syntax, domain, MX records, and connects directly to the mail server — confirming whether the inbox genuinely exists and can receive mail.
Six verification layers confirm whether an email address is real and deliverable.
Checks format and structure for typos, invalid characters, and malformed addresses.
Verifies the domain exists and is configured to receive email.
Confirms active mail server records are present for the domain.
Connects directly to the mail server to confirm the mailbox accepts mail.
Flags temporary email services from a database of 10,000+ known domains.
Identifies generic addresses like info@, support@, and admin@ that hurt engagement.
Four automated steps confirm whether an email address is genuine.
Validates email syntax and detects common typos or malformed addresses.
Checks domain existence and resolves MX records to confirm mail delivery is possible.
Connects to the mail server and tests whether the mailbox accepts incoming mail.
Scores the address for disposable, role, catch-all, and spam trap risk.
<2s
Response Time
Average SMTP verification
99.9%
Accuracy
Multi-layer validation
100
Free Daily Checks
No signup required
6
Validation Layers
Per address checked
Each tool focuses on a specific risk type.
The checker validates syntax, resolves domain MX records, then connects to the mail server over SMTP to confirm the mailbox accepts incoming mail. It also cross-references the domain against a database of known fake and disposable email services — returning a result in under 2 seconds.
Fake emails typically come from disposable email services, use unregistered or misspelled domains, or point to mail servers that reject the mailbox. BillionVerify checks all of these signals automatically and flags suspicious addresses.
BillionVerify achieves 99.9% accuracy by combining syntax validation, DNS lookups, MX record checks, and direct SMTP verification. This multi-layer approach catches fake, inactive, and suspicious addresses that basic validators miss.
Yes. BillionVerify maintains a database of 10,000+ known disposable and temporary email services and flags any address that uses one. A disposable address may technically deliver, but it is unlikely to belong to a real, engaged user.
Yes. You get 100 free checks every day with no signup and no credit card required. Every check includes full SMTP verification, disposable detection, and MX record analysis.
No. All checks run in real time and we never store the addresses you submit. Data is encrypted in transit and deleted immediately after processing.
探索 BillionVerify 的所有强大功能
100 free checks daily. Detects fake and disposable addresses in under 2 seconds.
100 free checks daily · No signup required · Results in under 2 seconds
