Blocking Domains

Norton Security | Norton Internet Security
1

After getting many spam emails how to make so much money in a day coming from Yahoo and Hotmail I have decided to block these domains but NIS still lets them thru albeit into Junk Mail. How do I stop block certain certain domains entirely.

2

After getting many spam emails how to make so much money in a day coming from Yahoo and Hotmail I have decided to block these domains but NIS still lets them thru albeit into Junk Mail. How do I stop block certain certain domains entirely.