What’s Up With All The Spam?

I don’t know if it is just our company or what, but in the last 30 days, the spam being filtered by our Barracuda spam filter (which is doing a great job by the way) has doubled, from about 5,000 per day in early September to nearly 10,000 per day now. We have about 600 users, so that’s 16 spams per user per day. Luckily for some users and not for others, it’s not evenly distributed like that. Our amount of legit mail hasn’t increased, so I can only conclude that the spammers are on a concerted attack. I wish they would all bugger off and go to jail.