I am looking for an e-mail list of 5,000 subscribers in the "Sports Betting" niche exclusively.
Emails need to be as fresh as possible and must be from an English speaking country. USA, Canada, UK, Australia, etc. are permitted.
The list must show the subscriber source country that they originated from.
I would need a sample of about 500 emails, and a few days (max 5 days) to test them.