High-Deliverability Windows SMTP Server

I need a rock-solid SMTP server configured on a Windows environment that can comfortably push out at least 3,000 messages every day while still landing in the inbox, not the spam folder. DKIM, SPF and DMARC must be fully active from day one; without them the job isn’t done... (Budget: $30 - $250 USD, Jobs: DNS, Documentation, Email Marketing, Linux, Plesk, SMTP, System Admin, Windows Server)