OpenBottle is a per user anti-spam email system based on a sender authenticated whitelist mechanism. The core of the system is written in Perl, with a web driven user interface in PHP. Sendmail is required as an MTA, Openldap for user accounts, Cyrus IMAP for user mailboxes and Horde as a webmail interface (if needed).

OpenBottle is currently in an beta stage and is still in development. The code is being made open under the GPL by Bluebottle Systems Pty. Ltd. (www.bluebottle.com). The system itself is not designed for small mail servers, but was designed to scale across multiple machines with the hope of being able to support large ISPs and corporate sizes.

News:

27th March 2003 - Openbottle-webmail component now available.

13th March 2003 - Openbottle-core initial release made available.