License Packs – Licensing - 3 Year License Validation Period - Windows - 1 Mailbox License Quantity - Volume - Subscription License - PC - D - (50-99) - Mail Security For Microsoft Exchange Server
License Packs – Licensing - 3 Year License Validation Period - Linux - Windows - Mac OS - Android - iOS - 1 Device License Quantity - Volume - Subscription License - PC - Mac - Handheld - D - (50-99) - On-premise