There is any way to implement this type of exclusion ( feed list from Microsoft ) to create a rule for exclusion all Office365 IPs and URL ( https://go.microsoft.com/fwlink/?LinkId=533185 ) from SSL encryption.
There is not option to use a feed list to make an exclusion in SSL policy, If you have list of URL's you can however ,create a rule with DN's to exclude the decryption.
Hope it helps,
Yogesh
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