: These internal Sophos properties handle specific configuration flags for the add-in's behavior and interface. Pro Tips for Admins Outlook Add-in installing but missing - Mail Protection
: The installation switch. It tells the system to perform an install of the specified package.
: The executable program that interprets MSI files and installs software on Windows. msiexec qr i sophosoutlookaddinsetupmsi t1 ec3 c1 i1 work
What are you currently using? (SCCM, Intune, GPO, etc.)
msiexec /qr /i "SophosOutlookAddInSetup.msi" t1=ec3 c1=i1 work /L*v "C:\Windows\Temp\SophosOutlookAddIn_Install.log" Use code with caution. Scripting via PowerShell (SCCM / Intune / RMM) : The executable program that interprets MSI files
: Usually a binary flag (1 for True) that automatically marks certain emails as confidential or triggers encryption based on specific headers. (AddInternetHeader)
Large-scale software deployment requires precision, predictability, and minimal user disruption. For IT professionals managing enterprise email security, deploying the Sophos Outlook Add-in across hundreds or thousands of endpoints is a critical task. When pushing this software via the command-line interface or an enterprise deployment tool like Microsoft Endpoint Configuration Manager (SCCM) or Microsoft Intune, specific switch combinations dictate the installation behavior. Scripting via PowerShell (SCCM / Intune / RMM)
: By including the t1 ec3 c1 i1 flags, the add-in is "pre-baked" with your organization's security settings the moment it opens.
To understand how this command operates, we must separate standard Windows Installer ( msiexec ) switches from Sophos-specific public properties and syntax anomalies.
Explain how to using registry keys Help you troubleshoot specific error codes (e.g., 1603) Let me know how you'd like to proceed with the deployment . Command-Line Options - Win32 apps - Microsoft Learn