Validate any email address for syntax, domain health, MX records, and SMTP deliverability in under 2 seconds. 99.9% accuracy. No signup, 100 free validations daily.
Enter any email address and receive a full validation report in under 2 seconds. BillionVerify validates syntax, domain, MX records, SMTP mailbox status, disposable email services, and role accounts — all in one result.
Six layers of validation run automatically on every address you validate.
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 validation steps run on every address you submit.
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 Validations
No signup required
6
Validation Layers
Per address validated
Each tool focuses on a specific risk type.
Validation runs through four layers: syntax check for formatting errors, domain lookup to confirm the domain is registered, MX record resolution to verify the domain can receive mail, and a direct SMTP connection to confirm the mailbox accepts incoming messages — all in under 2 seconds.
BillionVerify achieves 99.9% accuracy by combining syntax validation, DNS lookups, MX record checks, and direct SMTP verification. This multi-layer approach catches invalid, inactive, and risky addresses that basic validators miss.
Email address validation is the process of confirming that an email address is correctly formatted, belongs to a registered domain with working mail servers, and that the specific mailbox exists and can receive mail. BillionVerify runs all four checks automatically.
Yes. BillionVerify cross-references every address against a database of 10,000+ known disposable and temporary email services. Disposable addresses are flagged as risky even if the mailbox technically accepts mail.
Yes. You get 100 free validations every day with no signup and no credit card required. Every validation includes full SMTP verification, MX record checks, and disposable detection.
No. All validations happen 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 validations daily. SMTP verification confirms valid mailboxes in under 2 seconds.
100 free validations daily · No signup required · Results in under 2 seconds
