Use a storage account with Outlook.com

You've probably added attachments, such as photos or document files, to your email messages from time to time. When adding those attachments, you most likely selected them from the hard drive on your computer, a flash drive, or maybe even OneDrive. Now you have another option. If you store files on a file storage site such as Box or Dropbox, you can attach those files to your email messages.

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. Once 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.

Which versions of Outlook support storage accounts?

Storage accounts are available in the new Outlook.com experience. How do you know which version of Outlook.com you have? Compare your mailbox with the images below.

Legacy experience

New experience

Outlook.com menu bar

Outlook Mail menu bar

You can connect a storage account from an email message or the Storage Accounts page.

To connect a storage account from an email message
  1. Start an email message.

  2. Select Attach.

    Select Insert

  3. Select the storage account you want to connect.

    You can connect a storage account by selecting Attach and choosing one of the Add options

  4. Provide a username and password for the storage account (you must have an active account in order to connect). This is what enables Outlook to access the files.

    When connecting a storage account you need to provide your username and password so Outlook can access your files

To connect a storage account from the Storage Accounts page
  1. Select Settings icon > Options > Attachment options > Storage accounts.

  2. Select the storage account you want to connect.

  3. Provide a username and password for the storage account (you must have an active account in order to connect). This is what enables Outlook to access the files.

  1. In Outlook.com, select Settings icon > Options > Attachment options > Storage accounts.

  2. Select Remove.

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

See Also

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

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Box Privacy Policy

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