ALL versions of the Cyrus IMAP server are covered by the following copyright:

Copyright (c) 1994-2025 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
     Carnegie Mellon University
     Center for Technology Transfer and Enterprise Creation
     4615 Forbes Avenue
     Suite 302
     Pittsburgh, PA  15213
     (412) 268-7393, fax: (412) 268-7395
     innovation@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.

If you find this software useful and valuable in your work, we would
welcome any support you can offer toward continuing this work.

http://www.cyrusimap.org/ for information on how to contact us and
contributing.
