You can export your list of leads to any custom system (i.e. Webhooks).
To integrate with Webhooks, follow these steps:
Click on the Leads category on the left side of your screen. There you can see emails entered via pop-ups.
Click the Export to CRMs button.
Enter the Post URL where you want parameters from pop-up template with POST request to be submitted. If the URL requires some authorization (e.g. token or api key), you can include name of token (or api key parameter) and value.
Check the Live export after submit checkbox to save all your leads automatically.
Click the Save button.