Appendix B  Used open-source libraries

This product contains the following open-source libraries:

Berkeley DB

Berkeley DB (BDB) is a computer software library that provides a "high-performance" embedded database, with bindings in C, C++, Java, Perl, Python, Ruby, Tcl, Smalltalk, and many other programming languages.

The Regents of the University of California. All rights reserved.

Copyright ©1987, 1993 The Regents of the University of California. All rights reserved.


DNS resolver library, linked by PHP on Windows.

Copyright ©1983, 1993 The Regents of the University of California. All rights reserved.

Portions Copyright ©1993 by Digital Equipment Corporation.

Kerio MailServer Configuration Wizard for Linux

Kerio MailServer Configuration Wizard for Linux is an application helping with initial configuration of Kerio MailServer.

Copyright (c) Kerio Technologies, s.r.o

Kerio MailServer Configuration Wizard for Linux is distributed under GPL license, version 3.

To download the complete source code, please go to


A C++ wrapper around the SQLite embedded database library .

Copyright ©2004 Rob Groves. All Rights Reserved.

Ext JS

Ext JS is a cross-browser JavaScript library for building rich internet applications.

Ext JS Library 2.0.2

Copyright ©2006-2008, Ext JS, LLC (

Modified source codes are available at

Firebird 2

This software embeds modified version of Firebird database engine distributed under terms of IPL and IDPL licenses.

All copyright retained by individual contributors — original code Copyright © 2000 Inprise Corporation.

The modified source code is available at

Heimdal Kerberos

Heimdal Kerberos is used only in Linux-oriented Kerio MailServer versions.

Heimdal is an implementation of Kerberos 5, largely written in Sweden. It is freely available under a three clause BSD style license (but note that the tar balls include parts of Eric Young's libdes, which has a different license). Other free implementations include the one from MIT, and Shishi. Also Microsoft Windows and Sun's Java come with implementations of Kerberos.

Copyright ©1997-2000 Kungliga Tekniska Hogskolan (Royal Institute of Technology, Stockholm, Sweden). All rights reserved.

Copyright ©1995-1997 Eric Young ( All rights reserved.

Copyright ©1990 by the Massachusetts Institute of Technology

Copyright ©1988, 1990, 1993 The Regents of the University of California. All rights reserved.

Copyright ©1992 Simmule Turner and Rich Salz. All rights reserved.


Libcurl is a free and easy-to-use client-side URL transfer library. It supports the following protocols: FTP, FTPS, HTTP, HTTPS, GOPHER, TELNET, DICT, FILE and LDAP.

Copyright ©1996-2008, Daniel Stenberg, (


Libiconv converts from one character encoding to another through Unicode conversion.

Copyright ©1999-2003 Free Software Foundation, Inc.

Author: Bruno Haible


The libiconv library is distributed and licensed under LGPL version 3.

Kerio MailServer includes a customized version of this library. Complete source codes of the customized version of libiconv library are available at:


libspf2 implements the Sender Policy Framework, a part of the SPF/SRS protocol pair. libspf2 allows Sendmail, Postfix, Exim, Zmailer and MS Exchange check SPF records. It also verifies the SPF record and checks whether the sender server is authorized to send email from the domain used. This prevents email forgery, commonly used by spammers, scammers and email viruses/worms (for details, see

Copyright ©2004 Wayne Schlitt. All rights reserved.


XML parser and toolkit.

Copyright ©1998-2003 Daniel Veillard. All Rights Reserved.

Copyright ©2000 Bjorn Reese and Daniel Veillard.

Copyright ©2000 Gary Pennington and Daniel Veillard

Copyright ©1998 Bjorn Reese and Daniel Stenberg.


This product includes software developed by the Apache Software Foundation (

SpamAssassin is registered trademark of Apache Software Foundation.


Spellcheck library.

Copyright 2002 Kevin B. Hendricks, Stratford, Ontario, Canada And Contributors. All rights reserved.


Freely distributable LDAP (Lightweight Directory Access Protocol) implementation.

Copyright ©1998-2007 The OpenLDAP Foundation

Copyright ©1999, Juan C. Gomez, All rights reserved

Copyright ©2001 Computing Research Labs, New Mexico State University

Portions Copyright©1999, 2000 Novell, Inc. All Rights Reserved

Portions Copyright ©PADL Software Pty Ltd. 1999

Portions Copyright ©1990, 1991, 1993, 1994, 1995, 1996 Regents of the University of Michigan

Portions Copyright ©The Internet Society (1997)

Portions Copyright ©1998-2003 Kurt D. Zeilenga

Portions Copyright ©1998 A. Hartgers

Portions Copyright ©1999 Lars Uffmann

Portions Copyright ©2003 IBM Corporation

Portions Copyright ©2004 Hewlett-Packard Company

Portions Copyright ©2004 Howard Chu, Symas Corp.


An implementation of Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocol.

This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (

This product includes cryptographic software written by Eric Young (

This product includes software written by Tim Hudson (


PHP is a widely-used scripting language that is especially suited for Web development and can be embedded into HTML.

Copyright ©1999-2006 The PHP Group. All rights reserved.

This product includes PHP software, freely available from


Loadable PHP module used for multibyte string handling.

Copyright ©2001-2004 The PHP Group.

Copyright ©1998-2002 HappySize, Inc. All rights reserved.

The library is modified by Kerio Technologies Inc. and distributed under LGPL version 2.1.


This product includes software developed by the Apache Software Foundation (


General-purpose library for data compressing and decompressing.

Copyright ©1995-2005 Jean-Loup Gailly and Mark Adler.