Is LinkedIn Premium sufficient, or should I opt for LinkedIn Recruiter instead?

I’m in a somewhat unique position: I have a substantial list of candidates I want to reach out to regarding potential job openings. My plan is to message them directly on LinkedIn to discuss these opportunities.

Would LinkedIn Premium, which includes InMail for messaging individuals I’m not connected with, meet my needs? Or would LinkedIn Recruiter provide additional benefits that would be advantageous in this scenario?