The users can restrict the permission of the content documents and the E-mail messages in Office Online by using Information Rights Management (IRM). Site collection admin can configure which IRM options are available to your organization by using Group Policy.

First, create a client context, using Office 365 site and load the required document library, which is stored in $Lists. Access the IRmenabled properties and make it to true and set the title of the new IRM policy.

The properties given below are available for the manipulation.
  1. AllowWriteCopy.
  2. DisableDocumentBrowserView.
  3. DocumentLibraryProtectionExpireDate.
  4. DocumentAccessExpireDays.
  5. EnableDocumentAccessExpire.
  6. EnableDocumentBrowserPublishingView.
  7. EnableGroupProtection.
  8. EnableLicenseCacheExpire.
  9. LicenseCacheExpireDays.
  1. $ClientContext = New-Object Microsoft.SharePoint.Client.ClientContext(“”http://mysharepointsite”)
  2. $CCreds = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($Username,$Password)
  3. $ClientContextContext.Credentials = $CCreds
  4. $Lists = $Context.Web.Lists
  5. $ClientContextContext.Load($Lists)
  6. $ClientContextContext.ExecuteQuery()
  7. $List = $Lists.GetByTitle(“Documents”)
  8. $Context.Load($List)
  9. $Context.ExecuteQuery()
  10. $List.IrmEnabled = $true
  11. $List.InformationRightsManagementSettings.PolicyDescription = “My Policy”
  12. $List.InformationRightsManagementSettings.PolicyTitle =”My Policy Name”
  13. $List.InformationRightsManagementSettings.AllowPrint = $false
  14. $List.InformationRightsManagementSettings.AllowScript = $true
  15. $List.InformationRightsManagementSettings.AllowWriteCopy = $true
  16. $List.InformationRightsManagementSettings.DisableDocumentBrowserView = $false
  17. $List.InformationRightsManagementSettings.DocumentLibraryProtectionExpireDate = #Date
  18. $List.InformationRightsManagementSettings.DocumentAccessExpireDays = 10
  19. $List.InformationRightsManagementSettings.EnableDocumentAccessExpire = $true
  20. $List.InformationRightsManagementSettings.EnableDocumentBrowserPublishingView = $true
  21. $List.InformationRightsManagementSettings.EnableGroupProtection = $true
  22. $List.InformationRightsManagementSettings.EnableLicenseCacheExpire $true
  23. $List.InformationRightsManagementSettings.LicenseCacheExpireDays = 15
  24. $List.InformationRightsManagementSettings.GroupName = “mygrp:
  25. $List.Update()
  26. $ClientContext.ExecuteQuery()