Environment: SG230, UTM 9, latest patch. Web filtering in use with extension blocking.
Users have important need to visit a particular URL, which is: http://outlook.com/owa/uc.x-contoso.com They are blocked due prohibited file extension. I'm assuming that the ".com" is causing the problem.
But it doesn't go to a file. It goes to Outlook Web Access. Can verify this on an unfiltered network, there is no file.
Despite my best efforts, I am stymied to add an exception. I've created an exception for extension blocking, and used various regular expressions, without success. It always blocks on "forbidden extension". I'm beginning to think that the double ".com" has something to do with it?
Any advice here?
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