· Added Chinese whois registrar information to detect new spam domains.
· Fixed a problem in detecting correction URLs.
· Lowered the score of Neutral SPF records.
· Bayesian databases updated.
· DNS lookups are now only performed by the DNS server of the default gateway. This hugely improves performance of the lookups when the computer is connected to multiple networks (e.g. VPN connection).
· Added support for UUENCODED body. Some spammers have started to use this outdated coding technique to bypass filters.
· Added Bayesian filter to OCR image analysis.
· Added Bayesian filter to Intent analysis.
· Added detection of Google Docs abuse using Intent rule.
· Re-added detection of Microsoft SkyDrive abuse using Intent rule.
· Improved Intent rule.
· Fixed a problem when parsing SPF records specifying only "mx -all".
· Improved SPF rule. Now only records with "-all" can reduce the spam score when sender matches SPF record. This to prevent false negatives on spam coming from CAPTCHA protected online mail services (like hotmail.com and gmail.com) which use Neutral or SoftFail.
· Improved HTML to text converter.
· Automatic updater now provides more feedback in case of failure.
· Changed the internal workings of the HTTP downloader to alleviate problems when downloading updates.
· Automatic updater now provides option to update manually in case of failure.
· Upgraded SQLite to version 3.5.9 (static build).
· Bayesian databases updated.
· Fixed a problem in handling answers from specific DNS queries which could result in false positives.
· The ExchangeOne setup of Caretaker Antispam for Exchange Server now shares the version number with the end-user version; the current version for Exchange Server is now also 1.6.2.
· Added detection of poisoned internet settings (DNS). Antispam will display a warning and temporarily use a clean DNS server to prevent misclassification. For more information visit this page.
· Improved overall performance of the spam classifier.
· Improved spam detection.
· Rewrote the DNS resolver to better manage concurrent lookups.
· Added DNS lookup support for sub domains.
· Added detection of zipped HTML spam.
· Added X-Spam-Time-Spent header.
· Added TDI group load reordering to make sure that Caretaker TDI filter driver starts before other third party TDI filter drivers. This to resolve incompatibilities with TDI filter drivers that don't play nice.
· Added ESET Smart Security/Antivirus 3.0 workaround to resolve an incompatibility with ESET's ekrn.exe service.
· Fixed a potential race condition in the Prevx malware scanner.
· Fixed a couple of resource leaks (memory, handles, etc).
· Proxy now returns an initial OK to reset the timeout timer of the mail client.
· Improved performance of the HTML parser.
· Enabled the centralized reputation filter.
· Bayesian database updated.
· Finally fixed an issue under Windows XP were classification of email messages could time out. Because of this, it was possible that some incoming messages were not classified and thus possible spam messages to arrive in the Inbox of the user. The problem was directly related to the handling of thread pools by Windows XP.
· Fixed an issue that could cause high CPU load when a message arrives.
· Fixed an issue where the End-Of-Line token LF was handled improperly.
· Fixed an issue under Windows 2000 where the automatic update failed installing the update.
· Fixed an issue where the 64-bit (x64) version of Antispam could accidentally update to the 32-bit version.
· Added German language files.
· Added Blogspot abuse detection.
· Changed automatic update interval to 2 hours (was 8 hours).
· Updated Bayesian database.
· Added check for registration date of a possible spam/phishing domain
· Added I'm feeling lucky (Google) abuse detection
· Added Windows Live Skydrive abuse detection
· Added statistics to splash window
· Improved Undeliverable spam detection
· Improved universal malware detection
· Improved HTML parser
· Improved Invisible Ink detection
· Improved detection of 'Correction URL'
· Updated Bayesian databases
· Added universal firewall detection to help users configure their firewalls
· Fixed a problem where the CaretakerService stopped working
· Changed the TDI driver to workaround a bug in G Data InternetSecurity 2008 firewall
· Bayesian database updated
· Compatibility issues with 3rd-party firewall software like Comodo firewall and ZoneAlarm were fixed.
