Office 365 Business premium, which domains does it need to be able to access?

Office 365 Business Premium. I need to add all needed domains to my LAN firewall web content filter, so that they are allowed and not blocked. Is there a place to get a list of all domains that O365 BP needs access to in order to function properly? I found a page by MS but it was a mile long, I'm hoping there's a more concise way to do this.
pkromerAsked:
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Sunil ChauhanLead AdministratorCommented:
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pkromerAuthor Commented:
That's the list I already found, there are hundreds if not thousands on that list. Does O365 BP *really* need every one of those? That's insane. I'm thinking there has to be some other more concise list which allows it to function in a typical setup, without too many outside bells and whistles.
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Vasil Michev (MVP)Commented:
O365 is a suite of many different services, spread across datacenters all over the world. The fact that your users are only in Country X, doesnt mean that data is only accessed from the datacenters in that country. Moreover, if disaster strikes, the failover will most likely be to a datacenter in a different location, thus you need to have those ranges added as well. There are other reasons as well, the TL;DR story is that Microsoft does not publish "condensed" lists and if you want to stay in supported configuration, you need to use the above article.
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