Integrate ZeroBounce with 2,000+ apps and services

Validate a single email address (real-time)

Validates batches of up to 200 email addresses at a time. It is rate limited to 5 uses per minute, if you exceed the rate limit, you will be blocked for 10 minutes. If you're looking to do single email validations, please use our single email validator endpoint.

Send a file to ZeroBounce for bulk validation

Get the results file for a submitted validation file

Get the status of a file submitted for validation

Delete a previously submitted validation file

Score a single email address (real-time)

Send a file to ZeroBounce for bulk scoring

Get the results file for a submitted scoring file

Get the status of a file submitted for scoring

Delete a previously submitted scoring file

Uses a person’s first and last name and a domain or company name to test a variety of patterns and combinations in real time until it identifies a valid business email. It does not use or process customer data at any point to aid in this search. Privacy and Security Note – Email Finder API searches are performed in real time and do not use stored or processed customer data. Customer privacy and security are and will always remain our top priority.

Send a file to ZeroBounce for bulk email finding

Get the results file for a submitted email finder file

Get the status of a submitted email finder file

Delete a previously submitted email finder file

Domain search is functionally similar to email address inquiry but instead attempts to detect possible patterns a specific company uses. You can use detected patterns to help you approximate the correct email for a specific person you’re attempting to contact at a business. Privacy and security note – Domain Search API searches are performed in real time and do not use stored or processed customer data. Customer privacy and security are and will always remain our top priority.

Send a file to ZeroBounce for bulk domain searching

Get the results file for a submitted domain search file

Get the status of a submitted domain search file

Delete a previously submitted domain search file

Our Activity Data feature allows you to gather insights into your subscribers’ overall email engagement. The tool returns if the email inbox has been active in the past 30, 60, 90, 180, 365, or 365+ days. This indicates a potentially outdated contact, not recommended for cold emailing. Thus, you can improve your targeting and personalization and run more successful email campaigns.