Allow users to access Gmail
When the Default Proxy Policy is Deny, allowed traffic needs to be explicitly configured.
1. Add a Web Access Layer and create a Combined Destination Object for Destination (the example named it GMAIL)
2. Allow the following URLs:
mail.gooogle.com (Server Certificate)
Note: If you are using Google from outside of U.S., Google domains will be redirected to the country-specific domains, if www.google.com and www.gmail.com do not work, replace them with the country-specific domains that suit your environment.