Apr 23, 2016 - If not, you will need to download and install the OWA S/MIME application in order to process encrypted OWA emails. For those who are having.
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OWA has the same functionality across major browsers in most cases. For help using OWA, with your Inbox displayed, click ? (the question mark) at the top right.
In Outlook Web App 2010, the ability to encrypt and digitally signemail messages using S/MIME is available only in Internet Explorer 7and later. You can access your S/MIME control settings by going toyour OWA options, clicking Settings on the left, and thenclicking the S/MIME tab. You may need to download andinstall the S/MIME control in order to view the options. For more,see Microsoft's OutlookWeb App and S/MIME.
At Indiana University, Client Certificates are provided by theInCommon Certificate Service. For more, including how to get acertificate, see Secure messages with a digital signature (using S/MIME) at IU.
![Control Control](https://support.quovadisglobal.com/AvatarHandler.ashx?radfile=%252fCommon%252fEnd+User+Certificates+%28KB%29%252fOutlook%252fOutlook+Web+App%252fOutlook_options.png)
As an admin for Exchange Online, you can set up Outlook on the web (formerly known as Outlook Web App) to allow sending and receiving S/MIME-protected messages. Use the Get-SmimeConfig and Set-SmimeConfig cmdlets to view and manage this feature in Exchange Online PowerShell. To connect to Exchange Online PowerShell, see Connect to Exchange Online PowerShell.
For detailed syntax and parameter information, see Get-SmimeConfig and Set-SmimeConfig.
Considerations for Chrome
To use S/MIME in Outlook on the web in the Google Chrome web browser, you (or another admin) must set and configure the Chromium policy named ExtensionInstallForcelist to install the Microsoft S/MIME extension in Chrome. The policy value is
maafgiompdekodanheihhgilkjchcakm;https://outlook.office.com/owa/SmimeCrxUpdate.ashx
. And note that applying this policy requires domain-joined computers, so using S/MIME in Chrome effectively requires domain-joined computers.For details about the ExtensionInstallForcelist policy, see ExtensionInstallForcelist.
This step is a prerequisite for using Chrome; it does not replace the S/MIME control that's installed by users. Users are prompted to download and install the S/MIME control in Outlook on the web during their first use of S/MIME. Or, users can proactively go to S/MIME in their Outlook on the web settings to get the download link for the control.