Increase threat protection for Microsoft 365 for business
https://docs.microsoft.com/en-us/microsoft-365/admin/security-and-compliance/increase-threat-protection
May 18, 2022 · In the Microsoft 365 admin center, select Admin centers > Exchange. In the mail flow category, select rules. Select +, and then select Create a new rule. To see all the options, select More options at the bottom of the dialog box. Apply the settings in the following table. Use the default values for the rest of the settings, unless you want to ...
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