Adding Email Sender or Email Domain to Block Senders

To add a sender or a domain to the block list

(under the current configuration which is under Admin Console -> Gateway -> Policies )

Admin Console -> Directories -> Profile Groups 

Select Blocked Senders from the Profile Tree under Root

Then select the Build drop down menu item

from there select either Email Address or Email Domains

when adding the items, its best to at least add the date in the note section so it can be seen as a group and or when it was entered easily in case of roll back.