We have set RejectDirectSend to true

Hello

Please i need your help on this issue.

We have set RejectDirectSend to true, but it is still possible to send mail anonymously through tenant

Last Friday 3 oct 2025 we configured the tenant not to allow DirectSend from anonymous sources by setting the RejectDirectSend value to true using Powershell command.

When we check the status with the Get-command it looks like it is set but it is not working - it is still possible to spoof emails by sending through the mx record as anonymous.