Specified senders for a mail-enabled security

Question

I have a task to restrict who can send to a mail enabled security group that is on-prem managed.

I used the "Specified Sender" option on a cloud distro list but I need an equivalent for that for the Security Group on prem. Or even just blocking a user from sending to it will do.

I already tried Mailflow rules, with no results.

Thanks

Answer 1

Hello

Thank you for your question and reaching out. I can understand you are having query\issues related to specify sender for email enabled security group.

You can use below Powershell commands to Specific senders

Set-DistributionGroup -identity "MyGroup" -AcceptMessagesOnlyFromSendersOrMembers “MyGroup ”,”MyGroup2”

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