Greylisting.Org > Implementations



Martin Dempsey, who started out making an early Exim implementation of greylisting, has also made one that should work with Qmail. You can find it at his greylisting page:

Gunther Mair has created a more sophisticated solution for Qmail. It is based on a postgresSQL database and is written in C. It can be acquired from:

Greylite is a greylisting implementation for Qmail. It uses a so-called modified greylisting technology, which aims to make greylisting more transparent to MTAs and to make it more efficient. More information: