Installing the Sophos Outlook Add-in for Encryption

Sophos Outlook Add-in allows users to encrypt messages with one click from within Outlook.

Sophos Outlook Add-in is available for Outlook (Windows or macOS version) and Outlook Web Access, and is compatible with some Office 365 and Exchange environments.

Is my environment compatible with the Sophos Outlook Add-in?

Sophos Outlook Add-in works for mail accounts in the following environments:

  • Exchange Server 2013 or later (on-premise Exchange).
    Note Exchange Server 2013 API version 1.4 or older is not supported.
  • Office 365 Business subscription (Exchange online).
Note Non-Microsoft mail providers (such as Gmail or other POP/IMAP accounts) are not supported.

Compatible mail clients

  • Outlook for Windows 2013 and 2016.
  • Outlook for Mac 2016.
  • Outlook Web Access (Office 365 only).

Download the Sophos Outlook Add-in

Note If you are using macOS make sure encryption is turned on in Settings before you download and install the add-in.
  • Web/Mac users must download the XML manifest file. To do this, click the Download Web/Mac Outlook Add-in link under Settings > Encryption settings. Save this file in a location where you will be able to access it during the deployment step.
  • Windows users must download the msi installer. To do this, click the Download Windows Outlook Add-in link under Settings > Encryption settings. Save this file in a location where you will be able to access it during the deployment step.

Deploy the Sophos Outlook Add-in

  • Sideloading is recommended for proof of concept and testing purposes only. It refers to the process of installing Sophos Outlook Add-in on an individual end-user system.
  • If you want to use Office 365 Centralized Deployment, check if centralized deployment of add-ins will work in your environment.
  • If you are ready to begin centralized deployment of Sophos Outlook Add-in, see the "Manage deployment" instructions to get started.
  • For customers in an on-premise environment without a connection to Office 365, use the Exchange Admin Center to install Sophos Outlook Add-in for your organization.