Hi @Robert Rahn
Thank you for reaching out to the community forum!
There is no specific list of IP addresses and domains that are required only for Microsoft Entra Cloud Sync. Microsoft Entra Cloud Sync is a component of the Microsoft 365 and Office 365 services and shares the same IP addresses and domains. This is why the Office 365 URLs and IP address ranges list can be used to identify the necessary IP addresses and domains for Microsoft Entra Cloud Sync.
You can use the Office 365 URLs and IP address ranges list to identify the IP addresses and domains that are required for Entra.
Hope this helps. Do let us know if you any further queries.
Thanks,
Akhilesh.
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