Creating tasks from Mail is no longer possible given Yosemite does not allow 3rd party apps targeting the latest OS to be able to do this.
Article ID: 661
Created On: Tue, Mar 31, 2015 at 10:57 AM
Last Updated On: Mon, Apr 13, 2015 at 11:24 AM
Online URL: https://www.2doapp.com/kb/article/dragging-and-dropping-email-to-icon-on-dock-does-nothing.html