How to add M365 shared mailboxes to Outlook on Apple iOS and Android devices

By | May 1, 2026
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If you use Outlook for iOS or Outlook for Android and have been granted delegated access to a shared mailbox, you can add these shared mailboxes within the Outlook app.

Use a shared mailbox on a mobile device (phone or tablet)

If you need to download the Outlook App, this can be found within the Apple Store or Google Play store.

Once the apps has been installed, please follow the below steps to access access a shared mailbox from a mobile device.

  • Sign in to your primary mailbox to your primary account in Outlook for iOS or Android.
  • Tap the Add Account button in the left navigation pane, then tap Add a Shared Mailbox.

If you have multiple accounts in Outlook Mobile, select the account that has permissions to access the shared mailbox.

After the account setup process completes, the shared mailbox will display in your account list in Outlook for iOS or Outlook for Android.

To remove a shared mailbox, go to Settings > Accounts. Then tap on the shared mailbox and select Delete Account.