First of all:
courier-auth-postfix (the set of programs documented in this paper) and this paper are copyright © 2001-2002 Carlo Contavalli and can be distributed under the terms of the GNU General Public License.
The mysql optimizer of courier-auth-postfix is a modified version of the dict module that provides mysql support in postfix, and was originally written by Scott Cotton <scott@icgroup.com> and Joshua Marcus <josh@icgroup.com>. Refer to the postfix documentation for more details about the license of this module.
The Debian package for courier-auth-postfix was obtained modifying the original debian package for postfix available on the main debian archives on www.debian.org and maintained by LaMont Jones <lamont@debian.org>.
Note that courier-auth-postfix is free software and authors hold no responsability for any damage or loss, direct or indirect, caused by using this software. Use it only on your OWN risk and AFTER carefully reading this document.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts and no Back-Cover Texts.
Any example of program code available in this document should be considered protected by the terms of the GNU General Public License.
courier-auth-postfix is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
courier-auth-postfix is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
Trademarks are owned by their respective owners.