Reduce bounces, protect sender reputation, and improve inbox placement with fast email verification.
Verify email addresses, remove bad emails, and improve deliverability for as little as $0.005 or less per email.
Bad emails cost more than wasted sends — they can damage your domain reputation, increase bounce rates, and hurt inbox placement. DataZapp’s Email Verification service helps identify invalid, risky, disposable, catch-all, and harmful addresses before your campaign goes out.

DataZapp’s Email Verification API lets developers enrich email records programmatically with disposition labels ("Verified", "Failed", "Spam-Trap", & more).
{
"ApiKey": "API_KEY",
"AppendModule": "EmailVerificationAPI",
"Data": [
{
"Email": "[email protected]"
},
{
"Email": "[email protected]"
},
{
"Email": "[email protected]"
}
]
}Add Email addresses to your contacts.
Add Demographic & Behavioral data points to your contacts.
Add Names, Address, even Emails to your Phone records.
Flag or Remove Do-Not-Contact & other undesirable phone numbers.











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