This article describes how to add someone else's mailbox to your existing Outlook profile connected to Exchange mailbox.

Important: You need to have appropriate permissions to the mailbox in order to be able to add it.

Read the Knowledge Base articles for your version of Exchange for more information: How Do I Enable Send As Or Full Access Permissions On An Exchange Account?

Note: The mailbox you are adding should not be hidden from the Global Address List (GAL).

Outlook 2010/2013/2016/2019
Outlook 2011/2016/2019 for Mac
Outlook 2007

In Outlook 2010/2013/2016/2019:

  1. Modify the settings of your profile. Navigate to File > Info > Account Settings > Account Settings > highlight your profile and click Change: Account Settings
  2. Navigate to More Settings > Advanced tab > Add... and type in email address that you want to add as an additional mailbox. Add additional mailbox
  3. Click OK twice.
  4. Click Next.

In Outlook 2011/2016/2019 for Mac:

  1. Navigate to Tools > Accounts... > select your account > Advanced... Account settings in Outlook for Mac
  2. Under Open these additional mailboxes section hit + sign and type in email address or name of the mailbox owner.
  3. Hit Add. Open these additional mailboxes section

In Outlook 2007:

  1. On the Tools menu, click Account Settings. Account settings in Outlook 2007
  2. Select and double-click the email account you would like to change.
  3. Click More Settings.
  4. Select the Advanced tab.
  5. Click Add to open another mailbox.
  6. In the Add Mailbox box, type the name of the mailbox owner.
  7. Click OK twice.

Add mailbox

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