How to Configure an Office 365 Exchange Online Service Account and Import Historical Data

Requirements

• Microsoft .NET Framework 4.5 or 4.5.1 and either the Windows Management Framework 3.0 or the Windows Management Framework 4.0.

  • A mailbox with Microsoft Exchange Online Plan 1 or higher with global administrator permissions.

  • A mailbox that is not hidden in the Global Address list.

  • A license that supports Outlook (i.e., not a kiosk license).

• Verify the service account has the following:

• Enable RPC over HTTP (RoH) for the mailbox. See also How to Enable RPC over HTTP Connectivity.

Step 1. Connect to Office 365 Exchange Online

1. Connect to Exchange Online Powershell using one of the options:
   • If you are using Basic Authorization, see Connect to Exchange Online PowerShell.
   • If you are using Modern Authorization such as multi-factor authentication (MFA), see Connect to Exchange Online PowerShell using multi-factor authentication.
2. Find the correct IP range based on the region selected when setting up your Barracuda Email Security Service instance. Refer to the Barracuda Email Security Service IP Ranges for the IP ranges corresponding to your region. 

3. After you connect to Exchange Online PowerShell, run the appropriate script based on the connection setup you chose: 

   Basic Authorization

   Set-ExecutionPolicy unrestricted 
   $UserCredential = Get-Credential 
   $Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $UserCredential -Authentication Basic -AllowRedirection 
   Import-PSSession $Session 
   Get-Mailbox -ResultSize unlimited | Add-MailboxPermission -User <ServiceAccount@domain.com> -AccessRights fullaccess -InheritanceType all -Automapping $false

   Modern Authorization

   Note: Replace <your-UPN> with your Office 365 account.

   Connect-EXPOSSession -UserPrincipalName <your-UPN> 
   Get-Mailbox -ResultSize unlimited | Add-MailboxPermission -User <ServiceAccount@domain.com> -AccessRights fullaccess -InheritanceType all -Automapping $false

    Permissions are assigned on existing mailboxes only; if additional mailboxes are added to your organization, you must rerun this command.

   For more information on adding mailbox permissions, see Add-MailboxPermission in Microsoft TechNet. For information on testing mailbox rights, see Get-MailboxPermission in Microsoft TechNet.

Step 2. Import from Office 365 Exchange Online

1. Log into the Barracuda Cloud Archiving Service as the admin, and go to Mail Sources > Exchange Integration.

2. Click Start New Action. In the Select Action page, click Email Import.
3. In the Select Server page, click Add New Server.
4. In the Add New Server dialog box, enter a Configuration Name, the email address for the service account and the service account password.
5. Click Autodiscover.