SQLgrey 1.6.6 review

SQLgrey is a Postfix greylisting policy service with auto- whitelisting and an SQL database as storage backend. It is based on pos

License: GPL (GNU General Public License) File size: 0K Developer: Lionel Bouton

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SQLgrey is a Postfix greylisting policy service with auto- whitelisting and an SQL database as storage backend.

It is based on postgrey, refining auto-whitelisting and storing whitelists and connection attempts in a database. Its goal is reducing the amount of spam reaching user mailboxes.

Here are some key features of "SQLgrey":
SQLgrey can withstand a database crash (grey-listing is automatically switched off)
3 grey-listing algorithms to choose from
Support for file-based IP and FQDN whitelists
Support for fetching up-to-date whitelists from a repository
Can mail the admin when the database is unavailable
Auto-whitelists now understand SRS (SPF-aware mail forwarding)
IPv6 support
OPTIN / OPTOUT support
Fine log controls
Activity reports

Requirements:
Perl,
DBI,
Net::Server::Multiplex (at least 0.87 is recommended, stability issues have been reported with earlier versions),
SQLite, MySQL or PostgreSQL (PostgreSQL is recommended).

What's New in This Release:
A bugfix for a rare multiple instances race condition that permanently blocked some messages.