Home / Microsoft Outlook / How to Add a Shared Mailbox to the Outlook App on iOS and AndroidHow to Add a Shared Mailbox to the Outlook App on iOS and Android 2223 views Less than a minute Step 1Click on your Avatar or Initials at the top right of the AppStep 2Click on the Add Mailbox IconStep 3Click on Add a shared mailbox and enter the email address you have been granted access to.Click to rate this post! [Total: 39 Average: 1.3]