Disappearing Mailbox Content

[Patrick Boutilier]

On 09/09/2015 12:03 PM, Robert T. Covell wrote:
> We have an odd situation that I cannot track down regarding all content
> in a mailbox disappearing (minus sub mailboxes).
>
> CentOS release 6.5
>
> Cyrus IMAP v2.4.17-Invoca-RPM-2.4.17-6.el6
>
> A while back we setup a Cyrus install for a client to use as a mail
> repository for customer contact.  They have one account which is shared
> across all users in the office.  Approximate size of the account is 85GB.
>
> At times when a user tries to move email into a Customers mailbox the
> action is denied.  On the client side they see do see email in the
> mailbox (cached).  Upon further review everything is gone for that
> mailbox including: cyrus.cache, cyrus.header, cyrus.index.  Backups
> contain everything including past emails and the core Cyrus files.  If
> the mailbox contained other mailboxes they are not affected.
> Reconstructing it corrects the issue, luckily our backups do not
> propagate deletes.
>
> Problem is that we can’t find any record of the mailbox being deleted.
> The content just disappears.  We have been running Cyrus for years and
> have never seen anything like this.  I am leaning towards user error but
> I can’t identify what that would be.
>
> Any insight would be appreciated.
>
> _______________________
> Robert Covell
> Rolet Hosting & Interactive
> www.rolet.com
>



My first thought was that somebody was downloading and deleting all the 
mail using POP but the fact that the cyrus.* files disappear suggests 
that something is deleting at the OS level.
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