IMAP not seeing old mail present on filesystem

[Chris Pepper]

Simon,

	I did recover /var/lib/imap (although a bit later, FWIW) and 
/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.

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 Mail.app 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?