Major Changes introduced in SpamFilter ISP Enterprise v3.5 - The new SpamFilter ISP Enterprise v3.5 allows administrators to configure most filter settings individually for each domain being hosted. Most settings are now stored in a database, making it simpler for administrators to access them via custom web applications.

Technical notes - SpamFilter ISP Enterprise can be configured to run in "Standard" mode and in "Enterprise" mode. When configured for "Standard" mode, the functionality will be the same as in previous versions. When configured for "Enterprise" mode, the new functionality is activated. The Quarantine Database must be enabled and active for the Enterprise mode.

New Database functionality - In Enterprise mode, most settings are saved to the database. However, to avoid downtime if the database server is not available, all settings are automatically exported from the database to the file system. SpamFilter uses the files located on the file system to read all settings. SpamFilter will *not* read the database directly for its settings. SpamFilter will however continuously monitor the database, and if any settings stored in the database are changed, they are automatically saved to files and re-imported within seconds.

New Database Requirements - SpamFilter Enterprise only supports Microsoft SQL 7 or higher and MySQL v5 or higher. Support for MS Access and Oracle will not be added. The new database functionality relies heavily on the use of database triggers to ensure replication of database data to the file system. Triggers where added to MySQL starting from version 5, which explains the minimum requirement for this platform. SpamFilter will try to add the necessary tables, indexes and triggers automatically. If this procedure fails, please manually execute the MicrosoftSQL-Enterprise.sql and/or the MySql-Enterprise.sql update scripts found in the database directory.

New .ini settings structure - In both the Enterprise and the Standard modes, the SpamFilter.ini file has been greatly modified. Several of the settings in the SpamFilter.ini file can now be specified individually for each domain. For this reason, these settings have been moved to a new Filter.ini file. In Enterprise mode, each domain will have an associated Filter.ini file. All files relative to a domain are now stored in a subdirectory named after that domain. Special folder names are:
.\Domains\SFI - contains all settings for SpamFilter ISP in Standard mode
.\Domains\ ALL DOMAINS - contains all settings for domains in SpamFilter Enterprise that have not been customized.

Updates since previous beta - In addition to several bug fixes, this version changes the way emails with multiple recipients are handles. Two major issues in the past have been:
(1) emails with with multiple recipients, where one of them was in the "Unfiltered" whitelist, would be delivered to everyone even if it was spam.
(2) emails where the recipients belonged to different domains, and each domain had custom destination SMTP servers.
Both of these are being addressed in this beta. The release notes for this build are:

// New to VersionNumber = '3.5.3.630';
{TODO -cFix : Solved several bugs that would cause Access Violation Exceptions while processing incoming emails}
{TODO -cFix : Emails with multiple recipients on multiple domains - if different domains have different destination SMTP servers, the email is split and delivered to each server correctly}
{TODO -cNew : Emails with multiple recipients - When a recipient is in the "Unfiltered Emails", now a spam email is only delivered to them, and not everyone else}
{TODO -cNew : Added the X-SF-WhiteListedReason header for emails that are force-delivered from quarantine}
{TODO -cFix : SFE Only - Added option to DROP Enterprise tables before creating them via the database scripts}
 

Disclaimer - This version is a pre-release beta. As such, problems are expected. Using this version in a live production environment is not recommended.

This beta will expire on March 1, 2007.