Email Verifier
Check deliverability signals and quality score before you email.
Email Verification for Deliverability
Use this email verifier to quickly assess whether an address looks deliverable. It combines format validation, domain and MX checks, disposable and catch‑all detection, and SMTP validation when available. The goal is to cut bounces, protect sender reputation, and keep your signup pipeline clean.
Best for
Lead forms, newsletters, onboarding, and user signups
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Abstract Email Reputation API (server-side)
FAQ
Common questions about email validation and deliverability checks.
Does this tool send an email to the recipient?
No. It checks deliverability-related signals (like MX records and SMTP validation when available) and returns a quality assessment. It does not send messages.
What does Quality Score mean?
Quality Score is a normalized indicator that helps estimate how likely an address is to be deliverable and non-risky. Use it as guidance, not a guarantee.
Why can an email pass format validation but still be undeliverable?
Format checks only confirm the address is syntactically valid. Deliverability also depends on domain records (like MX) and mailbox behavior (like SMTP responses), which can fail even for correctly formatted emails.
What is a catch-all email address?
A catch-all domain accepts mail for any username (e.g., [email protected]). Catch-all behavior reduces certainty for mailbox-level validation.
What is a disposable email?
Disposable emails are temporary addresses often used for one-time signups. They can increase fraud and bounce risk, so many teams choose to block or flag them.
Do you store the emails I verify?
This demo does not persist your input. Requests are processed to retrieve verification results and returned to your browser.