Configure message delivery restrictions in Exchange Online

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Message delivery restrictions help to control who can or cannot send messages to users. The Exchange Admin Center (EAC) or Exchange Online PowerShell can be used to configure message delivery restrictions in Microsoft 365. However, with the EAC, bulk configuration is not possible. The restrictions have to be configured for individual mailbox separately. Technicians have to use PowerShell scripts for handling mailboxes in bulk which in turn complicates the script and consumes time.

With M365 Manger Plus' user-friendly UI, technicians can configure message delivery restrictions for multiple mailboxes without much effort and at a lesser time.

Steps to Configure message delivery restrictions with M365 Manager Plus

  1. Go to the Management tab.
  2. Navigate to Exchange Online > Mailbox Management in the left pane.
  3. Under the Exchange Mailbox Task category click on Trust/block Senders and Recipients.
  4. Create a trust and block list of senders using the options provided.

  5. Select the mailboxes for which the restrictions must be applied, which can be done either manually or by importing a CSV file.
  6. Click on Apply.

Click here to read more about other mailbox management capabilities provided by M365 Manager Plus. You can download a 30-day free trial of M365 Manager Plus to try the tool for yourself.

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