Test Email Verification
Run a syntax, MX, and disposable lookup in seconds. Not a live mailbox check — 2 tests per day, no signup.
2 test lookups per day, no signup. Mailbox verification uses the API or dashboard (1 credit per email).
How It Works
Syntax check
We validate the email format against RFC standards.
DNS/MX lookup
We confirm the domain has valid mail servers configured.
Disposable check
We flag known disposable/temporary email providers.
Frequently Asked Questions
What does test email verification check?
This page runs a lookup: syntax validation, MX records, and disposable-domain screening. It does not connect to the mailbox via SMTP. That requires the RocketVerifier API or dashboard (1 credit per email).
Is there a limit on how many checks I can run?
Anonymous test lookups are capped at 2 per day per visitor. For mailbox verification, sign up and use the API or dashboard. Eligible work emails can apply for 100 free credits after signup.
How is this different from the full RocketVerifier API?
This test validates format and runs DNS/disposable lookups. The full API connects via SMTP to confirm the mailbox exists, resolves catch-all domains, and returns a 0-100 confidence score with evidence.
Can I verify a list of emails with this tool?
This page checks one email at a time. For bulk verification of lists, create a free RocketVerifier account and use the bulk upload or API. Eligible work emails can apply for 100 free credits after signup.
Will this tool tell me if a mailbox is full or disabled?
No — that requires live SMTP verification, which is only available with a paid RocketVerifier account or sandbox API key.
Need live mailbox verification?
Create an account for a full SMTP check. Eligible work emails can apply for 100 free credits.