Domain scanning is a method to find the correct email of someone. When you know the name of someone you wish to contact "John Doe" and you know the company's email domain "example.com" and you try several variations to find the correct email addresses.


First Name Last Name Email address
JohnDoe[email protected]
John
Doe
[email protected]
John
Doe
[email protected]
John
Doe
[email protected]
John
Doe
[email protected]


Your list will not be verified if domain scanning is detected. To avoid the domain scanning warning, we recommend adding different domains to your list. 


Validating lists of a single domain is not good practice, as email servers will tend to block validations after a set number, which will return incorrect results within your list. To achieve the best results from our CORE service, validate your list as a whole not as separate lists for each domain.