Features - Blocking Senders
When you encounter objectionable messages, you can click a button to
add the address of the sender to a "blocked sender list." As new messages
are received News Rover compares the originating address with the blocked
sender list, and discards the message if it is from someone you have blocked.
Sender blocking is very convenient because you can block an address by
clicking a menu item while reading a message or while viewing a picture
in the picture gallery.