4D, Inc. today announced the release of 4D WebSTAR V v5.3.3, a free update to its 4D WebSTAR Server Suite. The new version enhances 4D Mail’s spam filtering capabilities with IP address whitelisting, and the ability to filter messages pre-tagged with SpamAssassin headers. Among other new features, 4D WebMail Pro v2.0.3 now enables 4D Mail users to change their passwords. The 5.3.3 release also includes numerous other improvements to the Web, Mail and FTP servers.