I have used glasswall for my organisation for many years now and it has been very reliable and easy to use. The software is great at scanning emails quickly without having to download large amounts of data which would slow down your computer. I cannot think of anything i dislike about this product but maybe you could improve its interface with other applications. It does what we need it to do perfectly and there isn't much else out there like it. We scan all our incoming mail using glasswall before allowing people access so that any viruses or malicious code don't get through.