I am using Sharepoint 2013, in this I have created the document library. In the document library I added the files and folder. Now I want to send email notification on updating the file or folder the email should go to the users who have the permission added in the users list. I am adding the user in the below users column. on updating the documents file, the email is going to currently logged user and the email is not going to other user. How it will done is their any ideas on this?