Cambois which type of Email account are you getting the spam on?
If it is Hotmail then go on to the MSN Website, click under HOTMAIL, OPTIONS, under MAIL HANDLING click CUSTOM FILTERS. You can now decide which words when used in the Email headings will be automatically deleted.
Good words to eliminate are, girls, sex, free, xxx, porn, you get the idea. Also set up the first part of your Hotmail email address to be filtered as a lot come through for example
tony123 you have won etc. etc. so if your email address was firstname.lastname@example.org you would include tony123 in the filter.
Hope this helps.