Email Validator
Verify emails instantly
How It Works
Our advanced multi-step validation process ensures 99% accuracy
Syntax Check
We verify the email format matches IETF standards and contains no invalid characters.
Disposable Detection
The domain is checked against our frequently updated database of temporary/throwaway email providers.
DNS & MX Lookup
We query the Domain Name System to confirm that the domain is configured to receive emails.
SMTP Handshake
We securely communicate with the mail server to verify the mailbox exists without sending an email.
Verify Email Address
Check deliverability and reputation
Validation Tips
- • Valid implies high deliverability
- • Risky implies a catch-all or blocked check
- • Disposable emails hurt reputation
- • Checking SMTP does not send an email
Privacy Note
Our API protects your data with 256-bit encryption. We do not store or reuse tested email addresses.
Why Choose Our Email Validator?
Built for speed, accuracy, and developer-friendly responses
High Accuracy
Our dynamic MX and SMTP probing engine guarantees up to 99% accuracy in reducing hard bounces from your lists.
Always Up-to-Date
We constantly update our databases of disposable domains, spam traps, and role-based accounts to keep you protected.
Lightning Fast
Our globally distributed architecture ensures that SMTP handshakes and DNS queries complete in milliseconds.
100% Private
We don't store your validated emails. All data is processed securely and instantly discarded after the check.
Safe Checking
We never send an actual email to the recipient. We just perform a safe SMTP handshake to verify mailbox existence.
Developer Friendly
Our validation logic provides detailed response codes and reasons, perfect for integrating into your own applications.
Powerful Email Validation Features
Everything you need to maintain a pristine email list
Syntax Validation
Ensure email addresses conform to standard RFC syntax rules and formats.
MX Record Lookup
Verify that the domain has valid Mail Exchange records to receive mail.
Deep SMTP Check
Connect directly to the mail server to verify mailbox existence in real-time.
Disposable Detection
Identify and block temporary, throwaway email addresses instantly.
Catch-All Detection
Detect servers configured to accept all emails, helping you avoid spam traps.
Role-Based Detection
Identify role-based addresses like admin@ or info@ to improve targeting.
Privacy First
We never store, log, or send messages to the emails you validate.
Lightning Fast
Get accurate validation results in milliseconds with our optimized infrastructure.
What Our Users Say
Trusted by thousands of developers and marketers
"This email validator is incredibly accurate. The SMTP checks save us from so many hard bounces!"
David Chen
Lead Developer
"We cleaned up our entire mailing list of 50k subscribers in minutes. The API is blazingly fast."
Sarah Jenkins
Marketing Manager
"Catching disposable emails before they enter our database has significantly improved our sender reputation."
Michael Torres
Growth Hacker
"The detailed validation reports help my SDRs know exactly which leads have valid inboxes before they hit send."
Emily Watson
Sales Director
Privacy First
We never store or share the emails you validate.
Secure Connection
256-bit encryption for all API and web requests.
99.9% Uptime
Enterprise-grade infrastructure for high reliability.
Latest Articles & Guides
Expert tips to help you maintain a clean email list
What is a Disposable Email and Why You Should Block Them
Disposable emails are temporary accounts used to bypass registrations. Learn how they silently destroy your sender reputation and exactly how to block them.
How SMTP Validation Actually Works (Without Sending an Email)
Ever wondered how tools can verify an email exists without actually sending a message to it? Dive into the technical details of DNS lookups and SMTP handshakes.
10 Proven Strategies to Reduce Your Email Bounce Rate
A high bounce rate can get your domain permanently blacklisted. Learn 10 actionable, expert-level steps to clean your list and stay out of the spam folder.
What is a Catch-All Email Address? (And How to Handle Them)
Catch-all servers accept all incoming emails, even to nonexistent users. Learn why B2B businesses use them and why they are a massive headache for email marketers.
Frequently Asked Questions
Everything you need to know about email validation