New MSP Platform business unit, AI-powered all-in-one Microsoft 365 protection, and Marketplace partnership with Pax8 strengthen Proofpoint’s commitment to channel and small and mid-size businessesProofpoint launches dedicated MSP Platform business unit and expands its channel-first cybersecurity strategy into North America with AI-powered Microsoft 365 protection for MSPs and SMBs.Proofpoint 365 Total Protection platform unifies email security, phishing and ransomware defense, backup, complianc