RECONSTRUCT(8)RECONSTRUCT(8)
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NAMEreconstruct - reconstruct mailboxes
SYNOPSISreconstruct [ -C config-file ] [ -p partition ] [ -x ] [ -r ] [ -f ]
[ -k ] [ -s ] [ -g ] [ -G ] mailbox...
reconstruct [ -C config-file ] -m
DESCRIPTION
Reconstruct rebuilds one or more IMAP mailboxes. When invoked with the
-m switch, it rebuilds the master mailboxes file. It can be used to
recover from almost any sort of data corruption.
If Reconstruct can find existing header and index files, it attempts to
preserve any data in them that is not derivable from the message files
themselves. The state reconstruct attempts to preserve includes the
flag names, flag state, and internaldate. Reconstruct derives all
other information from the message files.
Reconstruct reads its configuration options out of the imapd.conf(5)
file unless specified otherwise by -C. Any mailbox directory under‐
neath the path specified in the partition-news configuration option is
assumed to be in news format.
Reconstruct does not adjust the quota usage recorded in any quota root
files. After running reconstruct, it is advisable to run quota(8) with
the -f switch in order to fix the quota root files.
OPTIONS-C config-file
Read configuration options from config-file.
-p partition
Search for the listed (non-existant) mailboxes on the indicated
partition. Create the mailboxes in the database in addition to
reconstructing them. (not compatible with the use of wildcards)
-x When processing a mailbox which is not in the mailbox list (e.g.
via the -p or -f options), do not import the metadata from the
mailbox, instead create it anew (this specifically affects at
least the mailbox's seen state unique identifier, user flags,
and ACL).
-r Recursively reconstruct all sub-mailboxes of the mailboxes or
mailbox prefixes given as arguments.
-f Examine the filesystem underneath mailbox, adding all directo‐
ries with a cyrus.header found there as new mailboxes. Useful
for restoring mailboxes from backups.
-k Preserve the cyrus.expunge file and the corresponding message
files instead of deleting them.
-s Adds synchronization records to the log, so the synchronization
service can replicate the changes.
-g Clear existing or regenerated GUIDs for all messages.
-G Force regeneration of GUIDs for all messages.
-m NOTE: CURRENTLY UNAVAILABLE
Rebuild the mailboxes file. Use whatever data in the existing
mailboxes file it can scavenge, then scans all partitions listed
in the imapd.conf(5) file for additional mailboxes.
EXAMPLES
You want to reconstruct the index files for a user, you have recovered
a deleted mail file from backup and given it a suitable name (eg
user/ben-lacy/33.), but it is not visible since it is not indexed:
reconstruct-r user.ben-lacy
If you have the unixhierarchysep:yes option set in /etc/imapd.conf you
would need to run:
reconstruct-r user/ben.lacy
FILES
/etc/imapd.conf
CMU Project Cyrus RECONSTRUCT(8)
