**cyr_expire**
**************

Expire messages and duplicate delivery database entries


Synopsis
========

   **cyr_expire** [ **-C** *config-file* ] [ **-A** *archive-duration* ]
   [ **-D** *delete-duration* ] [ **-E** *expire-duration* ] [ **-X** *expunge-duration* ]
   [ **-p** *mailbox-pre‐fix* ] [ **-u** *username* ] [ **-t** ] [ **-v** ]
   [ **-a** ] [ **-c** ] [ **-x** ]


Description
===========

**cyr_expire** is used to run a number of regular maintenance tasks on
Cyrus databases, specifically:

* expire messages from mailboxes, and

* expire entries from the duplicate delivery database, and

* cleanse mailboxes of partially expunged messages (when using the
  “delayed” expunge mode), and

* remove deleted mailboxes (when using the “delayed” delete mode),
  and

* expire entries from conversations databases, and

* archive messages from mailbox.

There are various annotations that **cyr_expire** respects:

* "/vendor/cmu/cyrus-imapd/expire" which controls the expirations of
  messages

* "/vendor/cmu/cyrus-imapd/archive" which controls the archival of
  messages

* "/vendor/cmu/cyrus-imapd/delete" which controls the deletion of
  messages

These mailbox annotations specify the age(in days) of messages in the
given mailbox that should be expired/archived/deleted.

The value of the "/vendor/cmu/cyrus-imapd/expire" annotation is
inherited by all children of the mailbox on which it is set, so an
entire mailbox tree can be configured by setting a single annotation
on the root of that tree.  If a mailbox does not have a "/vendor/cmu
/cyrus-imapd/expire" annotation set on it (or does not inherit one),
then no messages are expired from the mailbox.

The annotation can be examined using the **info** command of
cyradm(8), and modified using the **mboxconfig** and **setinfo**
commands of cyradm(8).

Expiration of duplicate delivery database entries for a given mailbox
is also controlled by the "/vendor/cmu/cyrus-imapd/expire" annotation
which applies to that mailbox.  A value of 0 on the annotation means
that no expiration is to be performed on that mailbox. Unlike message
expiration, if no annotation applies to the mailbox then duplicate
database entries are expired using the value given to the **-E**
option.

Expiration of conversations database entries occurs if the
**conversations** option is present in imapd.conf(5). Expiration can
be disabled using the **-c** option.  The period used to expire
entries is controlled by the **conversations_expire_days** option in
imapd.conf(5).

**cyr_expire** reads its configuration options out of the
imapd.conf(5) file unless specified otherwise by **-C**.

**cyr_expire** requires at least one of **-A -D -E -X** or **-t** to
be supplied.


Options
=======

-C config-file

   Use the specified configuration file *config-file* rather than the
   default imapd.conf(5).

-A archive-duration

   Archive non-flagged messages older than *archive-duration* to the
   archive partition, allowing mailbox messages to be split between
   fast storage and slow large storage.  Only does anything if
   "archivepartition-*" has been set in your config. This value is
   only used for entries which do not have a corresponding
   "/vendonr/cmu/cyrus-imapd/archive" mailbox annotation.

   This feature was introduced in version 3.0.

-D delete-duration

   Remove previously deleted mailboxes older than *delete-duration*
   (when using the “delayed” delete mode). The value can be a floating
   point number, and may have a suffix to specify the unit of time.
   If no suffix, the value is number of days. Valid suffixes are **d**
   (days), **h** (hours), **m** (minutes) and **s** (seconds). This
   value is only used for entries which do not have a corresponding
   "/verdor/cmu/cyrus-imapd/delete" mailbox annotation.

-E expire-duration

   Prune the duplicate database of entries older than *expire-
   duration*. This value is only used for entries which do not have a
   corresponding "/vendor/cmu/cyrus-imapd/expire" mailbox annotation.
   Format is the same as delete-duration.

-X expunge-duration

   Expunge previously deleted messages older than *expunge-duration*
   (when using the “delayed” expunge mode). Format is the same as
   delete-duration.

-c

   Do not expire conversation database entries, even if the
   conversations feature is enabled.

   This feature was introduced in version 3.0.

-x

   Do not expunge messages even if using delayed expunge mode.  This
   reduces IO traffic considerably, allowing "cyr_expire" to be run
   frequently to clean up the duplicate database without overloading
   the machine.

-p mailbox-prefix

   Only find mailboxes starting with this prefix,  e.g.
   “user.justgotspammedlots”.

-u userid

   Only find mailboxes belonging to this user,  e.g.
   “justgotspammedlots@example.com”.

-t

   Remove any user flags which are not used by remaining (not
   expunged) messages.

-v

   Enable verbose output.

-a

   Skip the annotation lookup, so all "/vendor/cmu/cyrus-imapd/expire"
   annotations are ignored entirely.  It behaves as if they were not
   set, so only *expire-days* is considered for all mailboxes.


Examples
========

   **cyr_expire -E** *3* **-D** *60* **-X** *60*

   Purge duplicates database of all entries older than *3* days,
   remove deleted mailboxes older than *60* days and deleted messages
   older than *60* days.

   **cyr_expire -x -c -A** *7d*

   Perform migration of message older than *7* days to Archive
   partition whilst not altering conversation database nor expunging
   messages.


History
=======

Archive partition and conversation support was first introduced in
Cyrus version 3.0.


Files
=====

/etc/imapd.conf


See Also
========

imapd.conf(5), master(8), cyradm(8)
