I do not have any antivirus program. So can I get a virus by simply clicking on a junk mail. Thanks for any replies.
Yes...and no. If using Outlook you should have the "show preview pane" unchecked under Layout. Most viruses through e mails come from the link embedded within the body of the message. I'm sure there are some malicious e mails that can infect by simply opening it, so do the smart thing and you should be OK. BTW, why don't you use an antivirus program?