Anti spam filtering in free email services

Anti spam filters are provided as a part of the free email services that are provided by Hotmail, Yahoo, Gmail, and a host of other free email service providers. All you have to do is to make the Spam filter ON in these accounts for the spam filter to be in action. You can also train the spam filter to identify the spam and genuine emails.

Canadians are getting less spam

According to this article, Canadians are getting less spam now and because of that are more likely to sign up for permission based mailing lists and generally use email more.

So what are the Canadians doing differently than the rest of the world? Maybe they just don't buy the stuff advertised in the spam, so spammers are giving up on sending to them?

The articles claims it is due to a large increase in users with spam filtering software on their systems.