You can setup or edit email notifications by following the steps below:   

• Login to SlideShare
• Go to the drop down menu on the top right of every page and select  Edit Profile
• Click on Privacy Options in the menu on the left
• Under the Email Preferences tab, adjust settings as desired

You can set the following email preferences for the following notifications:

• When someone comments on your content       
• When your content is posted to any group/event   
• When someone adds your content as a favorite
• When someone sends you a private message   
• When someone posts on your wall       
• When someone starts following you    
• Someone invites you to join a group or event
• You can also turn off all notification emails