• Execute the cmdlet Enable-PsRemoting on the Exchange server to which you want to connect.
• Within IIS, under the Exchange Back End site for the Powershell sub-site, check that the authentication method Windows Authentication is enabled.
• Permissions to manage the Exchange objects, the default AD group Organization Management should suffice, but please change this accordingly.

This code snippet executes the following tasks:

1. Imports the ExchangeOnlineManagement module.
2. Define $mailboxGuid based on the selectedMailbox data source input $datasource.selectedMailbox.Guid
3. Creates a session to Exchange using Remote PowerShell.
4. List all recipients in Exchange On-Premises with FullAccess permissions to the mailbox using the cmdlet: Get-MailboxPermission
5. Return a hash table for each user account using the Write-Output cmdlet.

To view an example of the data source output, please refer to the JSON code pasted below.

{
  "selectedMailbox": {
    "Guid": "7d53a91f-dd9d-41b3-94fb-143bd2fc6854"
  }
}