Postgrey - a Postfix policy server for greylisting
It is recommended that you use Postgrey from your Linux distribution, if possible. Otherwise, you will need to install first the following requirements:
- Perl >= 5.6.0
- Net::Server (Perl Module)
- IO::Multiplex (Perl Module)
- BerkeleyDB (Perl Module)
- Berkeley DB >= 4.1 (Library)
- Digest::SHA (Perl Module, only for --privacy option)
To see the documentation in postgrey. Execute:
man postgrey if you are using a pre-built Postgrey distribution).
Updating the whitelist
You can find at the following URL the latest whitelist that is included in the Postgrey distribution:
If you fetch this list automatically, please make sure that you don't do it too frequently (updating once a day is ok).
Mailing-List and getting Help
There is a mailing-list for the discussion of postgrey, where you can also ask for help in case of trouble. To subscribe, send a mail with subject 'subscribe' to:
There is also a mailing-list archive, where you might find answers: