Spam comes at us from many directions. It is estimated that on any given day 88% to 98% of emails sent across the internets are spam or virus laden. That begs the question, how good are your filters? Do you get 1 bad email a day? an hour? a week? Or has email become such a wasteland of spam that you no longer bother to read it and go directly to instant messaging or Facebook and Twitter. It looks to me like Sarah Palin needs to check her filters, as no "Flapper" should have ever let that kind of call thru. (a Flapper being the human equivalent of a filter.)
As Sarah found out, it is a good idea to check your filter regularly. Like your car, not just to see what has been caught, but also to decide if too much junk is getting thru.
Here at Webconsuls we use GMail for our domain email. Today I bet Palin wishes Google had a service that could filter her calls, perhaps when Grand Central comes outa beta.