Direct Mail is fully compatible with the following operating systems:
- macOS 10.11 El Capitan
- macOS 10.12 Sierra
- macOS 10.13 High Sierra
- macOS 10.14 Mojave
- macOS 10.15 Catalina
- macOS 11 Big Sur
- macOS 12 Monterey
Direct Mail is compatible with both Intel and Apple Silicon Macs.