Backup and Restore strategies for Cyrus IMAP folders

Brian brianb at
Tue Apr 15 17:04:19 EDT 2003

Gary Mills said:
> There has been some discussion here recently on ways of restoring
> messages that have been accidentally deleted by Cyrus users.  We do
> frequent backups of the Cyrus filesystems.  Our restore procedure is
> simply to restore the `NNN.' files that contain the messages, and
> then run `reconstruct user.USER' and `quota -f user.USER', at least when
> the files were in INBOX.
> Is there anything wrong with this procedure?  We do it while Cyrus is
> running.  Is this safe to do?

Having done this in the past, I know there's nothing technically wrong
with it, but you do lose the state of the messages which can be annoying
if you have thousands of messages in your mailboxes as I do.


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