NAME

       cyr_expire - Cyrus IMAP documentation

       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.

       The  expiration  of messages is controlled by the /vendor/cmu/cyrus-imapd/expire mailbox annotation which
       specifies the age (in days) of messages in the given mailbox that should be deleted.  A value of 0  means
       that no expiration is to be performed on that mailbox.

       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.  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 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).

       -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)

AUTHOR

       The Cyrus Team, Nic Bernstein (Onlight), Jeroen van Meeuwen (Kolab Systems)

COPYRIGHT

       1993-2017, The Cyrus Team

3.0.13                                          December 16, 2019                                  CYR_EXPIRE(8)