IMAP not seeing old mail present on filesystem

Chris Pepper pepper at
Mon Oct 4 09:37:55 EDT 2010

On 10/4/10 9:17 AM, Simon Matter wrote:
>> Simon,
>> 	I did recover /var/lib/imap (although a bit later, FWIW) and
> I think "a bit later" is your problem. But I think reconstruct should fix
> this.
> BTW, did you check the subscription status of mailboxes? Maybe the folders
> are there but not subscribed, and that's why some users can't see them?


	No, users see the folders, just not old messages. For most (all?) 
INBOXes but my own, new messages started arriving as 1. and continued 
from there. Users can see the new mail, but not the old. This makes me 
think it's not an internal permissions problem, because they see the 
mailboxes and (some) mail in them. All file permissions I checked appear 

	"reconstruct -rfx" doesn't help. Is there anything else to try?



>> /etc/imapd.conf. I just now compared /etc/cyrus.conf and added squatter
>> &  adjusted prefork numbers -- the rest all matched.
>> 	Is there other configuration I should check? Both systems are 64-bit
>> CentOS 5, so the db4 installations should be fully compatible.
> If both the old and the new system are basically the same I don't think
> there is anything missing.
> Simon
>> Thanks,
>> Chris
>> On 10/4/10 8:36 AM, Simon Matter wrote:
>>>> All,
>>>>        I have run a small mail service based on Cyrus IMAP for a few
>>>> years. The (CentOS 5) server I've used for the past couple years failed
>>>> last week. I brought up a new CentOS 5 system on a new Linux server,
>>>> installed cyrus-imapd-2.3.7-7.el5_4.3, mounted the old /var disk
>>>> (actually one of 2 mdadm submirrors), and copied /var/spool/imap over
>>>> to
>>>> the new /var FS. It's running CentOS' cyrus-imapd-2.3.7-7.el5_4.3 RPM.
>>> Did you also recover /var/lib/imap from the old server and make sure the
>>> configs are the same?
>>> Simon
>>>>        Unfortunately, for many users (all but me?), mail clients (at
>>>> least
>>>> Apple's and SquirrelMail) don't show any messages from before
>>>> the migration in INBOX. When I grope around in /var/spool/imap/user, I
>>>> see the old message (with high numbers) and the new messages (starting
>>>> a
>>>> new sequence from 1).
>>>>        I know there are last-message counters in the cyrus.* files, so
>>>> would resetting those have caused IMAP to start storing new messages
>>>> from 1. and vanish the old ones? I don't know how those could have been
>>>> cleared for at least 6 users simultaneously. Presumably it happened for
>>>> all, and I just fixed it for myself somehow.
>>>>        More importantly, I don't know how to make the old messages
>>>> accessible to my users via IMAP (I can give them the files, but that's
>>>> quite awkward). chk_cyrus agrees with IMAP clients about message counts
>>>> (very low). I have tried reconstruct with various combinations of
>>>> "-rfx", and "quota -f", but not found any way to make it show the old
>>>> messages.
>>>> Any suggestions?

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