Sendent for Outlook - Windows Only vs. Cross-Platform

Sendent for Outlook offers two options for integrating secure file sharing into your email workflow: the Windows only add-in and the Cross-Platform add-in. While both achieve the same core function, there are key differences to consider when choosing between them.

Windows Only Add-in

Compatibility:

Works on Windows versions of Outlook 2016, 2019, 2021 and 2024 (only in “Classic Outlook” mode).
Not compatible with newer versions for Windows or Outlook for Mac/Web.

Technology: Leverages COM/VSTO technology, which Microsoft is phasing out for newer Outlook for Windows versions.
Future-Proofing:

Sendent will continue to support the Windows Only add-in for as long as Microsoft supports Outlook 2016, 2019, 2021 and 2024.
Sendent will assist users who wish to transition to the web add-in as they upgrade their Outlook versions.

Cross-Platform Add-in

Compatibility:

Outlook on Windows: Microsoft 365 subscription or Outlook 2024 for Windows (with Version 1910 build 12130.20272 or later) or Outlook 2019 for Windows (with new UI enabled).
Outlook on Mac: Microsoft 365 subscription or Outlook 2024 for Mac (with Build 16.47 or later).
Outlook on Web: Modern Outlook UI (See the Microsoft support article Use add-ins in Outlook)

Technology: Built on Microsoft's modern web framework, ensuring better performance, reliability and cross platform availability.
Features: Streamlined interface, consistent experience across platforms, and focus on core functionalities like secure file sharing and upload links. Advanced theming options are not currently available in the Cross-Platform add-in.
Future-Proofing: The recommended option for new users and those planning to upgrade Outlook.

Choosing the Right Sendent for Outlook that Fits Your Situation

If you use an older version of Outlook for Windows and value advanced customization, the Windows Only add-in remains a viable option with our continued support.
For everyone else, the Cross-Platform add-in is the future-proof choice, offering wider compatibility, a modern interface, and a focus on all core functionalities.

Sendent Subscription Options

Sendent for Outlook offers Standard and Plus plans that include access to both the VSTO and web add-in. This provides flexibility for users with different Outlook versions and ensures a smooth transition for existing users as they upgrade to newer Outlooks that may not support the VSTO add-in.
For the latest information, please refer to the Sendent for Outlook website.