filter emails, get valid ones. 🔐

Filters provided list of emails and returns the not blacklisted ones<br/> <br/> <strong>Example Post Data:</strong><br/> <code> {<br/>     "emails": [<br/>         "joker@blocklisted.com",<br/>         "robin@gotham.com",<br/>         "batman@gotham.com"<br/>     ],<br/>     "group_id": "11940",<br/>     "invert": false<br/> }<br/> </code>