- When you use this workaround to access Outlook Web App, you receive the following error message the first time that you do this:To use S/MIME you must have Internet Explorer 7 or a later version. For more information, contact your Help desk.
To work around this issue, close Internet Explorer 11, reopen the page in compatibility mode, and then the S/MIME option will work as expected.
- When you use this workaround, Internet Explorer 11 saves your Compatibility View settings for the website. Every time that you access the Outlook Web App site, Compatibility View will be used. To turn off Compatibility View for a website, click the Compatibility View icon for that website. You can also add or remove specific websites from Compatibility View without accessing each website.