The verification process can vary, depending on the current demand that the service is receiving and the amount of email addresses that employ methods like greylisting or tarpitting.


We recommend that you allow 24 hours for the verification process to complete. However, in general, the process is much faster, especially outside of peak business hours.


You will receive an email when the verification process has completed.


All results are returned as .csv with your original data in the same format as you uploaded. Results are appended to the end of each column.


Please, do not contact us if the list has not been verifying for more than 24 hours.


Realtime API

Our Realtime API service validates email addresses instantly, responding with a result in less than one second.



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