What is is:

 A patch to stock qmail-1.03 to get all user account information
 from an LDAP database. It primary target are POP toaster with
 huge numbers of users (from thousands up to millions).

Some of it's greatest features:

 - Users and virtual domains in an LDAP database
 - No local accounts needed
 - Perfect for ISP's to build POP toasters
 - Native mail server clustering
 - Supports size quotas on user maildirs and mbox
 - Automatic creation of home- and maildir's
 - Handles replies with new qmail-reply
 - Extensive logging in qmail-smtpd and qmail-pop3d
 - Supports tarpitting (based on a patch by Chris Johnson)
 - Supports OpenLDAP 1.2.X and Mozilla Directory SDK
 - Includes Antispam-Features (based on a patch by Lindsay Haisley,
   Rask Lambertsen and Lionel Widdifield)
 [snip]

WWW: http://www.nrg4u.com/