Find out whether an email address is legitimate, real, and safe to use. BillionVerify detects fake, disposable, and suspicious addresses in under 2 seconds. No signup, 100 free checks daily.
Enter any address and get a full legitimacy report. BillionVerify checks syntax, domain, MX records, SMTP, disposable email services, and role account patterns — confirming whether the address is genuine.
Six verification layers confirm whether an email address is legitimate and safe to contact.
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 determine whether an email address is genuine and deliverable.
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 legitimacy check
99.9%
Accuracy
Multi-layer verification
100
Free Daily Checks
No signup required
6
Verification Layers
Per address checked
Each tool targets a specific deliverability problem.
The checker validates syntax, resolves domain MX records, connects to the mail server over SMTP to confirm the inbox exists, then cross-references the domain against a database of 10,000+ known disposable and suspicious providers — all in under 2 seconds.
An address is not legitimate if it comes from a temporary or disposable service, uses a fake or unregistered domain, has an inactive mailbox, or belongs to a known spam trap. BillionVerify checks all of these automatically.
BillionVerify achieves 99.9% accuracy by combining syntax validation, DNS lookups, SMTP verification, and disposable domain detection. This multi-layer approach flags suspicious and fake addresses that single-check validators miss.
Role-based addresses like info@, support@, and admin@ are technically valid but rarely monitored by a real person. They often hurt engagement rates. BillionVerify flags them separately so you can decide whether to include them.
Yes. You get 100 free legitimacy checks every day with no signup and no credit card required. Every check includes full SMTP verification, disposable detection, and role account 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, disposable, and suspicious addresses in under 2 seconds.
100 free checks daily · No signup required · Results in under 2 seconds
