Accurately blocking spam and dangerous messages is not an easy thing to do, but that alone does not define a great email filtering job. Making sure that legitimate messages are delivered is also key.
The margin of error is very low on both sides of this fine line but a few blocked legitimate messages (called False Positives or FPs) can have a great impact on daily operations.
The ZEROSPAM solution has a very low proven FP rate. This has been proven test after test by a reputed and neutral third party (Virus Bulletin) since March 2012. On 6 different occasions so far, ZEROSPAM has earned the VBSpam+ award which requires no false positives during a single test. Typically, in the first few weeks of service, new customers will release a few legitimate messages from the quarantine, make corresponding entries in the sender’s whitelist and then stop monitoring the quarantine altogether.
" With our new Office 365 and Exchange-online practice, we’re recommending to every customer that they add ZEROSPAM. We can sign up many customers, we can get them up and running very quickly and on-going management is almost as simple as sending them the bill. Convincing customers to use a pretrial is actually very easy. Once you get somebody to experience that quality, that’s 90% of the sales cycle right there! "- D. Scott, CTO EPIC Information Solutions