Having trouble activating or connecting to Office 365
Microsoft maintains a list of URLs & IP addresses that should be whitelisted to allow for Office365 connections & activation. That list is found here: https://docs.microsoft.com/en-us/office365/enterprise/urls-and-ip-address-ranges
Please bear in mind that while that list looks very long, Web Filter supports wildcard matching. For example, an entry for
*microsoft.com* will cover:
See this article for more details about using wildcard matching: Improving filters with wildcards!Follow
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