Spam filters are often a huge source of frustration for small business owners. While filters can prevent a deluge of electronic junk mail from clogging inboxes, they can suddenly stop working, miss ...

False positives: The best scores in our test all reflect products that have gotten the science of not tagging legitimate mail as spam down to the noise level. Any false positive is a problem, and ...

That’s how much spam we saw during the month of June. And things are getting worse, not better – in a similar Network World test we ran in February (see review), only 50% of the mail stream was spam.