The price of this software is very reasonable. It's easy to set up in just few minutes. Most importantly it has an excellent customer support team that helps with any issue you might have. I am using mail cleaner as part of my work email security setup. With all our clients email accounts being hosted by us, we need some way of ensuring they are secure from viruses/other malicious emails without having them filter through our servers. This does exactly what it says - filters out unwanted or harmful emails before reaching your inbox.