Mail Checker API — Email Validation & Deliverability | YEB

Fast, accurate email validation and deliverability checks using multi-step DNS, MX and heuristic analysis. Catch typos, disposable addresses and invalid mailboxes before they bounce.

Transparent pricing: 0.005 credits / request  • 1402.7ms

Try API FAQ Buy Credits

What can you do?

Catch typos & disposables at sign-up and keep your lists clean.

Higher sender reputation thanks to cleaner email databases.

Instant in-form validation with clear feedback for users.

Remove fake addresses before they skew your marketing metrics.
Result
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                    Frequently Asked Questions
                
    
            
    
            
    
                
    
                    
    
                                                    
    
    
    
        
    
    

    
    
        
    
            It uses multi-step DNS, MX and heuristics to approximate deliverability without SMTP banners, keeping it fast and safe.
        
    
    
    

    
                                                    
    
    
    
        
    
    

    
    
        
    
            No. We hash emails in flight for analytics; the plain address is never written to disk.
        
    
    
    

    
                                                                            
    
    
    
        
    
    

    
    
        
    
            Every request from the live demo UI consumes the same number of credits as a direct API call.
        
    
    
    

    
                                            
    
                
    
            
    
        
    
    
    
    
    
                
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