There are many ways you can get a new email address - there are many web based email providers.
I particularly like gmail.
https://www.google.com/accounts/NewAccount?service=mail&t=5b2cf5bc-47fb6074-898c3403fb4b040c1269&continue=http%3A%2F%2Fmail.google.com%2Fmail%2Fe-11-1052ba0094bdd17813f9c7bc1fc87c7d-4ec39cba0d69ac4a290444e03d840a904597e49f&type=2&gd=1
If you want to keep orange - just create a new email address:
http://www.orange.co.uk/communicate/email/webm ail/default.htm?linkfrom=communicate_email_def ault&link=link_1&article=communicatenav
Only give your email address to people who need to know - do not respond to spam mail.
I have a spare gmail address I use for sites that ask for an email address, but I have no intention of returning to the site. This keeps my main address free of rubbish.