Instructions:

1) Click here: https://app.practicepanther.com/Settings/EmailIntegration
2) For "Email Provider" select "iCloud" from the drop-down list.
3) Enter your username and password and click Save (see screenshot below):

When it's linked, it will automatically create a label/folder in your iCloud email account called "PracticePanther" with subfolders for every client and matter. When you drag and email into the folder, it automatically uploads to the clients profile in PracticePanther so everyone with access can see all client communications.