[Dovecot] File isn't in mbox format - Couldn't open INBOX

[Rich West]

Yup, using Procmail.  That's the main reason I never went to Cyrus.. 
it's difficult to get procmail to work with it.

I'm using fctnl for locking, if that matters any..

-Rich

>
> I see it too.  You running procmail by any chance?  In our case it 
> appears to be due to file locking, with procmail grabbing the mail 
> spool while the user is deleting messages.  Not sure if it is procmail 
> specific or not, but the client doesn't seem to matter as it happens 
> with pretty much all of them.
>
> /steve
> At 10:03 AM 4/14/2005, Rich West wrote:
>
>> While I saw another thread on the list similar to the issue I was 
>> experiencing 
>> (http://dovecot.org/pipermail/dovecot/2005-February/006168.html), I 
>> was wondering if there was a way around this problem (the thread 
>> simply suggested upgrading, but are the later version (specifically 
>> the 1.0-test releases) ready for prime time?)...
>>
>> We're periodically having this with some users (not sure what client 
>> they are using, but I am pretty sure it is MS Outlook) where the 
>> inbox is in near perfect shape except for some extra characters at 
>> the beginning of the file.  POP or IMAP delivery fails with an error 
>> stating "File isn't in mbox format - Couldn't open INBOX".  It looks 
>> like those characters are of a previous message that was not 
>> completely removed from the file, and those characters seem to throw 
>> everything out of wack..
>>
>> It's easily correctable by removing the bogus characters from the 
>> beginning of the file, but that gets annoying quickly..
>