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Getting Started

Cyrus Software can be obtained from

The most recent versions of any branch of all of the products should be present in this directory. Older versions are available at

You can also download Cyrus Software via Anonymous GIT: Contribute#Anonymous_GIT_Access

Licensing

ALL versions of the Cyrus IMAP server and Cyrus SASL library are now covered by the following copyright message. However, please note that in older distributions, there may still be files that have the old copyright text.

    * Copyright (c) 1994-2012 Carnegie Mellon University.  All rights reserved.
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions
    * are met:
    *
    * 1. Redistributions of source code must retain the above copyright
    *    notice, this list of conditions and the following disclaimer. 
    *
    * 2. Redistributions in binary form must reproduce the above copyright
    *    notice, this list of conditions and the following disclaimer in
    *    the documentation and/or other materials provided with the
    *    distribution.
    *
    * 3. The name "Carnegie Mellon University" must not be used to
    *    endorse or promote products derived from this software without
    *    prior written permission. For permission or any legal
    *    details, please contact  
    *      Office of Technology Transfer
    *      Carnegie Mellon University
    *      5000 Forbes Avenue
    *      Pittsburgh, PA  15213-3890
    *      (412) 268-4387, fax: (412) 268-7395
    *      tech-transfer@andrew.cmu.edu
    *
    * 4. Redistributions of any form whatsoever must retain the following
    *    acknowledgment:
    *    "This product includes software developed by Computing Services
    *     at Carnegie Mellon University (http://www.cmu.edu/computing/)."
    *
    * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
    * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
    * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
    * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
    * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
    * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
    * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

IMAP Server

The latest stable/current release of the IMAP server is 2.4.16 which includes support for replicated mailboxes, unified murder configuration, delayed expunge, separate metadata partitions, Sieve extensions, and much more. It requires SASLv2 which is available below.

The latest legacy release of the IMAP server is 2.3.17. It requires SASLv2 which is available below.

The last release in the 2.2.x series of the IMAP server is 2.2.13p1. No further releases of the 2.2 branch are planned.

The 2.0 and 2.1 series have been deprecated, and are no longer supported.

The 1.x series of Cyrus IMAPd has been deprecated. It should be considered unsafe to use.

IMAP Server with integrated calendaring and contacts

Cyrus IMAP with integrated calendaring and contacts is now available for beta testing. This code is based on the stable Cyrus 2.4.17 release with support for CalDAV, CardDAV and RSS added. All of the standard Cyrus IMAP daemons and utilities should be considered production quality in this release, but the HTTP support (CalDAV, CardDAV and RSS) is in beta status.

Download 2.4.17-caldav-beta10

SASL Library

Please refer to the NEWS file for changes or more details can be found in the ChangeLog. Both are included with the distribution.

For the SASLv2 (current) library, version 2.1.26 is available. This is a production/stable release.

Here is the 1.5.28 release. This library is being deprecated and applications should transition to using the SASLv2 library.

An unsupported, precompiled Win32 version of SASLv1 is also available: setup-sasl-1.5.27.exe This can be used for Windows client applications that support SASLv1. (The Oracle Collaboration Suite Calendar client is the only application known to use SASLv1 on Windows.) This library should be considered depricated.

MateAR.eu IT Solutions has offered to build and make available a binary distribution of Cyrus SASL for Windows platforms. You can download their binary distribution here. Please note that the Cyrus Project does not test or support this distribution. MateAR.eu will attempt to make themselves available on the cyrus-sasl mailing list for support issues.

IMSP Server

The IMSP server was used for storing application preferences and address book data in a shared location. Few applications support IMSP preferences and address books.

The final version of IMSP server was version 1.7b. No further releases of the IMSP server are planned.

The IMSP server is no longer available for download.

ACAP Server

The ACAP server was used for storing application preferences in a shared location, and was designed to be a successor to IMSP. Even fewer applications support ACAP.

The final version of the server was version 0.5. No further releases of the ACAP server are planned The ACAP server requries SASL 1.5.x, which has been deprecated.

The ACAP server is no longer available for download.

External Projects

These are projects that are not directly developed or managed under the umbrella of the Cyrus Project, but may provide enhancements or additional functionality.

There is a non-CMU effort to develop Cyrus utilities.

Additionally, a Cyrus administrative GUI is available from http://korreio.sf.net