Use a storage account with Outlook.com

In addition to files from your computer and OneDrive, Outlook.com lets you attach files from third-party storage accounts like Box or Dropbox to your messages. To attach files from a third-party storage account, you'll need to connect it to your Outlook.com account.

Choose your version for instructions

The instructions are slightly different depending on whether you're using the Outlook.com beta. Choose which version of Outlook.com you're using to see the instructions that apply to you.

IF YOUR MAILBOX LOOKS LIKE...

IF YOUR MAILBOX LOOKS LIKE...

A screenshot of the top left corner of the Outlook.com beta mailbox

See Instructions for the Outlook.com beta.

A screenshot of the top left corner of the classic Outlook.com mailbox

See Instructions for classic Outlook.com.

Instructions for the Outlook.com beta

Connect a storage account

  1. Select Settings icon > View full settings.

  2. In Settings, select Mail > Attachments.

  3. Under Storage accounts, select the storage account you want to connect.

  4. Provide a username and password for the storage account.

Remove a storage account

  1. Select Settings icon > View full settings.

  2. In Settings, select Mail > Attachments.

  3. Under Storage accounts, select Remove below the account you want to remove.

    A screenshot of the Remove button

Instructions for classic Outlook.com

Connect a storage account

  1. Select Settings icon > Options.

  2. In the Options pane, under Mail > Attachment options, select Storage accounts.

  3. Select the storage account you want to connect.

  4. Provide a username and password for the storage account.

Remove a storage account

  1. In Outlook.com, select Settings icon > Options.

  2. In the Options pane, under Mail > Attachment options, select Storage accounts.

  3. Select Remove next to the account you want to remove.

    Remove a storage account by going to Options > Mail > Storage Accounts

How do storage accounts work behind the scenes?

Outlook.com uses public APIs to communicate with your storage account. This communication enables Outlook to display your list of files and to share files from that list with recipients of your email messages. To enable the sharing, Outlook needs your basic storage account information and permission to access it.

You can remove a storage account at any time. After the storage account is removed, Outlook no longer stores any information associated with it. All files you’ve already shared from that storage account will remain shared with your email recipients.

See Also

Attach files to email messages and calendar events in Outlook.com or Outlook on the web

Microsoft Privacy Statement

Dropbox Privacy and Terms

Box Privacy Policy

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