my email address has been sold

YOu can use filters to bar any unwanted emails. Contact your ISP to deal with this accordingly. Otherwise what about setting a new email address and make sure that you don't insert it when you are browsing online or filling applications here. Good luck

i don't think lot of mnc's sending mails which look like spam..so don't worry use your email.

Either you have unwisely used your email to register with suspect sites or you have been forwarding those 'please forward this to all your friends' emails or you just have an email address which is easily constructed from common words or names by the software that many spammers use to generate email addresses. 60 to 80 spam mails a day is not uncommon. Turn on the spam filters that your email provider gives you and you should find that most spam will go straight into the 'Junk' or 'Spam' folder.