If legitimate emails are being misidentified as spam across the organization, it suggests that there may be a broader issue with the spam filtering system. Contacting Google Workspace support to investigate and resolve the problem is the recommended approach. Disabling spam filtering or adjusting individual settings may not resolve the root cause and could potentially lead to further issues.

Creating a matter and placing a hold on the relevant data sources ensures that all communications related to the specific project are preserved, even if users try to delete them. This will help in maintaining compliance with legal or regulatory requirements for e-discovery, and it ensures that data cannot be modified or deleted during the audit process.

Using the Data Regions function in the Google Admin console, you can specify where data is stored for different organizational units (OUs) based on their geographical location. This ensures that employee data for those in Germany is stored within Europe, while data for US employees is stored within the US, meeting the regulatory requirements for data locality. This approach automates compliance and eliminates the need for manual tracking or additional configurations.