Sample Response Header

Api-User: yesmail

Content-Location: https://api.yesmail.com/v2/subscribers/jsmith%40zzz.com

Content-Type: application/json

Date: 2013-03-01T14:56:01Z

Expires: 2013-03-01T14:56:01Z

Last-Modified: 2013-02-01T12:25:15Z

Link: <https://api.yesmail.com/v2/subscribers/jsmith%40zzz.com/subscriptions>; rel="subscriptions"