Attach files in Outlook on the web

You can attach files from your computer, OneDrive, or other storage accounts to email messages and calendar events and share them with others. You can also embed pictures in your email messages and calendar events.

Attach files from your computer

When you attach a file from your computer, you're attaching a copy of the file. Each recipient will get their own copy of the file.

Note: The attachment size limit for local files is 34 MB.

  1. Sign in to Outlook on the web.

  2. In an email message or calendar event, select Attach at the top of the page.

    A screenshot of the Attach button.

  3. Select Computer, choose the file you want to attach, and select Open.

    Tip: Double-click folders to open them.

  4. Select Attach as a copy.

Attach files from OneDrive

When you attach a file from OneDrive, your recipients can collaborate on it in real time. You can also upload a file on your computer to OneDrive and share it as a OneDrive file.

Note: The attachment size limit for OneDrive files is 2GB.

  1. In an email message or calendar event, select Attach at the top of the page.

    A screenshot of the Attach button.

  2. Select OneDrive - personal or OneDrive - <your business name>.

  3. Choose the file you want to attach and select Next.

    Tip: Double-click folders to open them.

  4. Select Share as a OneDrive link.

    To change if people can edit the file or only view it, select The More actions button. > Change permissions and then choose what people can do with the shared file.

    A screenshot of the More actions button.

Attach files from another cloud storage account

You can also attach a file from Dropbox or Box.

  1. In an email message or calendar event, select Attach at the top of the page.

    A screenshot of the Attach button.

  2. Select Dropbox or Box.

  3. Choose the file you want to attach and select Next.

    Tip: Double-click folders to open them.

  4. Select Attach as a Dropbox file or Attach as a Box file.

    Note: Anyone you've shared the file with can see the latest changes. See Use a storage account with Outlook.com for more information.

Attach a message to another message

  1. Open a new email message, or reply to or forward an existing message.

  2. Open the message in a new window by selecting The Edit in a separate window icon at the top right corner.

    Note: If you don't see The Edit in a separate window icon , first try expanding the message by selecting The Expand icon at the top right corner.

  3. Arrange the windows so you can see both the message list and your new email message.

  4. Select and drag the message you want to attach from the message list to your new message.

    A screenshot of a message being dragged into the Compose pane

Print an attachment

  1. Open the message containing the attachment you want to print.

  2. Select the attachment, and from the drop-down menu, select Download.

After the download is complete, you can open the item and then print it.

Remove an attachment

Select The Delete button. at the top right corner of the attached file.

A screenshot of the Delete attachment button.

Insert a picture in an email message or calendar event

  1. Open the message or calendar event.

  2. Select the picture icon to insert a picture from your computer.

    The Insert Picture icon lets you insert from OneDrive or your computer

  3. Choose the picture you want to insert and select Open .

  4. Drag the corner handles to make the image bigger or smaller.

    Drag the image handles to make the image bigger or smaller

  5. Right-click the image to see formatting options.

Tips for sending and receiving file attachments

  • If you reply to a message that has an attachment, the attachment won’t be included in the reply.

  • Don't open an attachment sent in an email message unless you trust the content and the person who sent it to you. Attachments are a common method for spreading computer viruses. Use the Reading pane to preview the message ( Settings icon > Display settings > Reading pane) before opening it.

  • Long file names of attachments might be shortened in Outlook on the web. This won’t affect the contents of the file.

  • You only attach files to calendar events that you or a delegate created.

See Also

Attach files or insert pictures in Outlook email messages

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