area: email
action: getcanspamwhoisinfo
https://api.hypermail.com/api.php?apikey=YOURAPIKEYHERE&area=email&action=getcanspamwhoisinfo&start=0&limit=10
<response>
<records>1</records>
<whois>
<id>1</id>
<primarywhois>No</primarywhois>
<company>MDS</company>
<address>123 Main Street</address>
<city>Sometown</city>
<region>IL</region>
<zip>60149</zip>
<country>US</country>
<firstname>John</firstname>
<lastname>Doe</lastname>
<phone>1234567890</phone>
<email>test@test.com</email>
<datecreated>October 14, 2010, 12:23:17 am</datecreated>
</whois>
</response>
{
"records": "1",
"whois": {
"id": "1",
"primarywhois": "No",
"company": "MDS",
"address": "123 Main Street",
"city": "Sometown",
"region": "IL",
"zip": "60149",
"country": "US",
"firstname": "John",
"lastname": "Doe",
"phone": "1234567890",
"email": "test@test.com",
"datecreated": "October 14, 2010, 12:23:17 am"
}
}