[Dovecot] Anyone successfully setup Continous Backup of mailboxes using rsync ?

CoolAtt NNA coolatt at live.com
Tue Feb 2 09:02:47 EET 2010

For the duplicates , when an email is flagged , am working on a script that will remove the duplicates. 

Am thinking about the following files:

Will they affect the restore process ??


> Date: Fri, 29 Jan 2010 14:20:05 +0100
> From: alexh at boxed.no
> To: dovecot at dovecot.org
> CC: tss at iki.fi; lists at luigirosa.com
> Subject: Re: [Dovecot] Anyone successfully setup Continous Backup of	mailboxes using rsync ?
> On 29.01.2010 08:59, Timo Sirainen wrote:
> > On 29.1.2010, at 7.57, Luigi Rosa wrote:
> >
> >> Timo Sirainen said the following on 29/01/10 06:48:
> >>
> >>> The main potential problem with that is that if a message's flag is
> >>> changed, the filename changes so it's now stored twice in the backup
> >>> server. So when restoring mails, be sure not to restore duplicates.
> >>
> >> Using a different dedicated directory for restored messages could lead to the
> >> same problem?
> >
> > If you didn't give --delete parameter to rsync, there could be duplicates, yes. Dovecot just logs about them and gives new UIDs to them, so you'll end up having duplicate mails. I suppose some day I should just change it to log a warning, but delete if the files are otherwise identical.
> >
> Using rsync will have the flags issue and others to be dealt with; lvm 
> (or any other kind) of snapshot and rdiff-backup gives you a consistent 
> snapshot, as well as the option of saving a lot of space and time as 
> only changes gets backed up. As a bonus you can also restore anything to 
> a given point in time, either induvidual messages or whole folders or 
> even the whole mailbox.
> -A
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