Eccles has pointed out that to proceed on the link hc gave you need to insert your email address and quite rightly she is cautious - hence my explanatory link on the wider topic.
Giving clear information really does help you know.
I've entered all my email addresses in to that site over the past 6 months or so after I read about it in the Computer Active magazine.
I get very little spam and I have not had any more than usual since using that site. I found out that one of my email addresses had been compromised a few years ago on Adobe.