Someone sent me spam from my own Yahoo e-mail address, how did this happen and how can I prevent it? It showed up in my bulk folder. I tried right clicking on the sender and clicking properties, it showed that the e-mail was sent by me. It is a sales add from a jerelery seller with a link to a web site HTTP:// saer.shnsgg.com I just changed my password, will this fix this problem. I don't want to have to block my own e-mail address from my in box.