Question 1

What is email validation?

Accepted Answer

Email validation is the process of verifying that an email address is correctly formatted, belongs to an active domain, and has a real, deliverable mailbox. It checks syntax, DNS records, MX records, and mailbox existence to ensure emails reach their destination without bouncing.

Question 2

How does real-time email validation work?

Accepted Answer

Real-time email validation works by running a series of checks the moment an email address is submitted: (1) syntax validation against RFC standards, (2) domain and DNS lookup to confirm the domain exists, (3) MX record check to verify the domain accepts email, (4) SMTP handshake to test mailbox existence, and (5) risk analysis to flag disposable addresses, role-based accounts, and spam traps.

Question 3

What is the difference between email validation and email verification?

Accepted Answer

Email validation and email verification are often used interchangeably. Email validation typically refers to the full process of checking format, domain, and deliverability. Email verification usually refers specifically to confirming the mailbox exists via SMTP. ValidPeak performs both: syntax validation, domain checks, MX record lookup, and mailbox verification in a single API call.

Question 4

How accurate is ValidPeak's email validation?

Accepted Answer

ValidPeak achieves 99.8% accuracy in email validation by combining 25+ verification checks including SMTP handshake testing, real-time DNS lookups, disposable email detection, catch-all domain identification, and proprietary risk scoring. This accuracy helps reduce bounce rates below 2% and protects your sender reputation.

Question 5

Can I validate emails in bulk?

Accepted Answer

Yes. ValidPeak supports bulk email validation for lists of any size. You can upload a CSV file through the dashboard or use the API to validate thousands of emails simultaneously. Results include validation status, risk score, and detailed check results for each address, allowing you to clean your email list before sending campaigns.

Question 6

Does email validation reduce bounce rates?

Accepted Answer

Yes. Email validation directly reduces hard bounce rates by removing invalid, non-existent, and undeliverable addresses from your list before sending. Keeping your bounce rate below 2% is critical for maintaining sender reputation with ISPs like Gmail, Outlook, and Yahoo. ValidPeak customers typically see an 80–95% reduction in hard bounces after cleaning their lists.

Email ValidationThat Never Misses

Three Steps to Clean Email Lists

Input

Validate

Results

25+ Validation Checks in Real-Time

Actionable Insights at a Glance

Integrate in Minutes, Not Days

Built for Scale. Engineered for Precision.

Every Team Benefits from Clean Data

Start Validating Emails Today