Attach a file or folder to a message in Outlook for Mac

You can send files and folders by attaching them to an email message. When you attach a folder, Outlook 2016 for Mac compresses the contents of the folder into a single .zip file.

1. In your message, on the Message tab, click Attach File.

    or 

2. Locate the item or folder that you want to attach, select it, and then click Choose.

   If you are attaching a folder, on the confirmation dialog box, click Compress.

   Notes: 

   • A list of the attachments to the message appears below the Subject box.

   • To remove an attachment from a message, hold down CONTROL and click the attachment, and then click Remove.

   • You can also add attachments by dragging a file or folder from the desktop or Finder into the body of the message.