04-25-2007, 04:18 PM
http://sqlgrey.sourceforge.net/
This is an excellent greylisting implementation that works very well for several sites I manage, including one that processes over a million messages on the average day.
sqlgrey is a fork of postgrey and has the following additional features:
* 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
well worth looking into if you want to have a hassle free experience with greylisting.
This is an excellent greylisting implementation that works very well for several sites I manage, including one that processes over a million messages on the average day.
sqlgrey is a fork of postgrey and has the following additional features:
* 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
well worth looking into if you want to have a hassle free experience with greylisting.