You don't mention what mailbox format you're using on the server. If you are using the traditional mbox format, this is known to not work. The traditional mbox file format doesn't support multiple simultaneous accesses. If you are using the mbx mailbox format, which does, then I would not expect you to see this problem.

If you are using mbx, or another format that is known to support simultaneous access, then I'm afraid I have no suggestion to offer.

                            - Chris


On 07/29/2010 12:16 PM, Neal Morgan wrote:
Greetings:

I have been having an issue with mbox corruption with two users: one who
uses both a Mac and an iPhone and another using both Mac and iPod.

In both cases, the head of the mbox becomes corrupted such that:
1) the normal "folder internal data" message is no longer there
2) the first message in the mbox is missing the "FROM" line and the
first few lines of the message header contain garbled characters.

Once in this state, imap returns errors when the user attempts to read
the mailbox.   I have been manually deleting everything from the top of
the mbox to the beginning of the next complete message - to fix the
corruption.  Interestingly, while this fixes the immediate problem, I
note the folder internal data message never gets put back at the top.  I
suspect maybe this is because the user isn't using folders??

I saw a similar thread in the archive a few years back - but didn't see
a post indicating the resolution.

I am running Debian Lenny.  The UW package version reported in Debian
notation is 7:2007b~dfs.


Thanks,

Neal Morgan

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