Allow organization·specific WebEx while blocking others.
This article uses an example of a company's WebEx as corporation.webex.com.
Creating a policy to allow corporation.webex.com and blocking the webex.com domain will not help here because the WebEx application tends to connect to several URLs ending with webex.com (e.g. ed1chcbmm100.webex.com). It is not a viable solution to consolidate and whitelist all the backend URLs since there is no constant list of domain names because it keeps changing, and new URLs may get added in the future.
The solution is to exclude webex.com from doing SSL interception and add the below Content Policy Language (CPL) script in Local Policy File.