title: bulk add to NEW address book with powershell in O365
body: <p>I have a big list of client email addresses that need to be accessible to all internal employees. i have created a new address list to use using:</p>
  
  <pre><code>New-addresslist –name “TRH MP List”
  New-GlobalAddressList –name “TRH MP List”
  </code></pre>
  
  <p>the list shows up in my address book in Outlook but says i can't edit it (even though i made myself an admin of it.)</p>
  
  <p>I found this but it seems to only be able to add the main GLOBAL address list.</p>
  
  <pre><code>Import-Csv C:\ExternalContacts.csv|%{New-MailContact -Name $_.Name -DisplayName $_.Name -ExternalEmailAddress $_.ExternalEmailAddress -FirstName $_.FirstName -LastName $_.LastName}
  </code></pre>
  
  <p>I've been googling but the above is the only thing that ever turns up. </p>