Never open a spam mail and remember to turn the preview pane off. This way only those messages you deliberately open are displayed. The pictures in spam mails are usually made so spammers can see if you open them and that means a lot of spam.
To turn the preview pane off:
Outlook Express: Click
View Menu > Layout and remove the check mark beside
Show Preview Pane.
Outlook Express 6.0 offers a "
Read all messages as plain text" option. This is a good alternative to disabling the preview pane.
Outlook 2000/XP: Click
View Menu > Preview Pane.
Outlook 2003: Click
View Menu > Reading Pane > Off.
Look at our flash tutorial if you need more help.
Source:
http://www.spamfighter.com/FAQ_TipoftheDay_01.asp