Forum Discussion
Policy for limiting external domains and allowing particular external receivers
Hi community, According to the guide https://learn.microsoft.com/en-us/defender-office-365/outbound-spam-policies-external-email-forwarding i have created the following rule for our test domain:...
There's no need to create a mail flow rule at all. Best practice is to create a new outbound anti-spam policy with external forwarding enabled (and all other settings the same as the existingpolicy) and scope it only to the users you want to allow to email forwarding.