Bulk e-mailers are digitally signing unsolicited messages in hopes of bypassing popular filtering programs, but updated software has been modified to detect the trick, experts said this week. The ...

Barracuda Networks last week released a new version of its anti-spam appliance that prevents unwanted e-mail and viruses from being sent out of a corporate network while keeping sensitive data, trade ...

Part of the reason, attorneys and consumer advocates say, is that efforts to block unsolicited bulk e-mail have been too broad, shutting out legitimate messages as well as the spam. Blacklisting of ...

So are e-mail inboxes any less cluttered? In the week since the law took effect, spam-filtering company Brightmail Inc. flagged 58 percent of incoming e-mail as spam, showing no change from December.