Last week I think I mentioned that I was going to try out Mailive to see how it compares to Siterecon.
Let me tell you, there's a world of difference between the two services. Mailive hasn't bothered me with a single false positive since I've set it up. I got an email, unprompted, from one of the support people at Knowledge Front (the people who run Mailive) asking if I had any questions or needed any help. He also explained exactly what the price structure was ($360 per server per year).
Plus they have a contact phone number listed on their web page.