Should Outlook 2003 block graphics from downloading?

By default Outlook 2003 doesn't download pictures from external sources included in HTML codes. Putting images inside HTML codes is a method that spammers use to find active and working email addresses so leaving this feature intact is suggested but if you receive regular HTML emails find the work-around here:
Set Outlook 2003 to automatically download graphics
You can also stick to the default settings and force picture downloads on every email individually or adding a specific sender or domain to to safe sender list by right clicking on a blocked image and select the options available: