Just because you registered a company, doesn’t mean you have a business. :)

Did you warm your email domains?

What filters do you apply to get the leads?

What subject line did you use?

I would not recommend using Apollo for sending emails. Use a dedicated sending tool like Smartlead or Instantly.

Change subheading of second section from “You can hire amazing employees outside of the US for $10,000 per year ($800/month).” to “You can hire amazing employees outside of the US from just $26.67 a day.”