Pharming Protection: option to exclude URLs
Some applications like Snapchat or Zscaler use kind of "virtual URLs", which are not resolvable.
Even an online DNS lookup delivers no result.
So Web Filtering blocks the attempt of the Client, to check for or contact this URL with the error "Host not found"
See examples for this issue HERE: https://community.sophos.com/products/unified-threat-management/f/web-protection-web-filtering-application-visibility-control/46970/snapchat---host-not-found#pi2151=2&pi2353=1 and HERE: https://community.sophos.com/products/unified-threat-management/f/web-protection-web-filtering-application-visibility-control/116554/unresolved-urls-zscaler-are-blocked-in-web-filtering-with-host-not-found---exception-possible/421719#421719
At present Pharming Protection has to be completely disabled, to prevent the application from throwing errors.
I suggest the option to exclude URLs from the Pharming check, so it can remain active for all other URLs