MSG Viewer for Outlook 3 is compatible with all of the latest versions of macOS / OS X, and your license is valid for macOS 10.6-10.14. Please note that your license is only valid for the version you've purchased (App Store or non-App Store).


• macOS 10.14 (Mojave) - Supported!

• macOS 10.13 (High Sierra) - Supported!

• macOS 10.12 (Sierra) - Supported!

• OS X 10.11 (El Capitan) - Supported!

• OS X 10.10 (Yosemite) - Supported!

• OS X 10.9 (Mavericks) - Supported!

• OS X 10.8 (Mountain Lion) - Supported!

• OS X 10.7 (Lion) - Supported! Legacy interface (non-App Store only)

• OS X 10.6 (Snow Leopard) Legacy interface (non-App Store only)

• OS X 10.5 (Leopard) - Legacy interface (non-App Store only) - See below!

• iOS (iPad, iPhone) - Not supported


All OS X 10.5 users can download a compatible Trial Version of MSG Viewer for Outlook by clicking here. Please note that the OS X 10.5 compatible version has a legacy version of the conversion engine and does not have the same capabilities as the OS X 10.6+ compatible versions. If you've already purchased our software and need a licensed version that is compatible with OS X 10.5, please submit a ticket.

Haven't tried MSG Viewer for Outlook yet? Why don’t you give our FREE trial for a spin to test for yourself? Click here to download.