In my e'mail program, you click on the message/sender you want blocked, then go to the "message" tab at the top, click on it, and choose "block sender." A box will come up asking if you want to remove all messages from this sender. Choose "yes," and current messages will be deleted, and the senders e-mail address will be added to a file. If they try to send another message, it will automatically be put in the "garbage." My "block sender" file at work is SOOO long! I block all the "penis enlargement" and "see young asian girls doing largely-endowed men" types of messages (on those, a lot of times the "click here to remove your name from our mailing list" links don't work, and may actually be a way of letting them know you are reading the mail).