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.. _imap-admin-access-control-lists:
==============
Access Control
==============
Cyrus IMAP features rich access control compliant with :rfc:`2086`,
:rfc:`4314`, :rfc:`5257` and :rfc:`5464`.
.. toctree::
:maxdepth: 1
:glob:
access-control/*
.. _imap-admin-access-control-lists-discretionary:
Discretionary Access Control
============================
Cyrus IMAP employs discretionary access control, meaning that users
themselves are in charge of what folders are shared, and with whom.
Two means exist to suppress sharing folders between users:
#. Revoke the :ref:`imap-admin-access-control-right-a` (administration)
right on all mailboxes in the personal namespace for each user.
#. Suppress the listing of the
:ref:`imap-features-namespaces-other-users` by enabling
``disable_user_namespace`` in :cyrusman:`imapd.conf(5)`.
Back to :ref:`imap-admin`
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