Archiving emails with Cyrus
nik at bu.edu
Mon Nov 24 11:12:36 EST 2008
On Nov 24, 2008, at 10:36 AM, John Madden wrote:
> On Monday 24 November 2008 08:56:35 am Alexandros Gougousoudis wrote:
>> There must be a process in cyrus, which copies these emails into a
>> (zip)-file and/or into a database, to have them somehow accessable.
>> Cyrus must do this with the administrator account, because the imap
>> credentials of all the users are of course not known to us. Or we
>> install an "archive"-useraccount which has access to all mailboxes.
> Here's an idea I've been toying with for an upcoming implementation...
> Let's say you create everyone's Inbox/Drafts/etc mailboxes on your
> fast (expensive/small?) storage with a relatively low mailbox
> quota. You
> then create user.username.archive on a separate Cyrus partition,
> residing on SATA with a relatively high mailbox quota. Inform your
> that to store mail and keep their Inbox available they should move
> it there.
> You can then use Cyrus' built-in search mechanisms (squat) and have
> to change
> very little.
I've been toying with the idea of replacing the cyrus routine(s?) that
open/read the MESSAGE#. spool files with something that also
understands gzipped data. That way I can selectively gzip messages
based on some algorithm involving message size and lack of activity.
I haven't yet had the chance to do the analysis on the spool to see
what sort of space gains I could expect.
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