We are moving to Office 365 Exchange Online and may use some other Office 365 services in the near future such as SharePoint Online or OneDrive for Business.
I found the FAQ "Office 365 Access Control" and have configured the requisite custom application and a security policy rule; however, since we haven't fully rolled out TLS decryption yet, I'm decrypting on a service-by-service basis as required. This means I need to create a custom URL category object as well that represents the relevant URLs.
I have looked at Microsoft's list of Office 365 URLs and IP address ranges document. It's a beast, with information about both the URLs as well as the target IP address ranges, protocols, and port numbers.
Does anyone know of a guide anywhere that would help me get started, such as how many rules for this I will need to configure? Or is it more common for everyone to just put all the URLs in one big custom URL category and just let people access it at any destination IP address/range?
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