On 11/27/2012 11:47 AM, Brian Evans - Postfix List wrote:
> On 11/27/2012 12:40 PM, Frank Bonnet wrote:
>> Hello
>>
>> I'm facing a boring problem for few accounts ( less than 10 over 2000 )
>> on my freebsd 9.0 mailhub , see below the error message I get in maillog
>>
>>
>> Nov 27 17:59:45 mail postfix/local[11988]: 3Y9n2B5TH9zYmgf:
>> to=<x...@esiee.fr>, orig_to=<x...@esiee.fr>, relay=local, delay=10175,
>> delays=10156/0.02/0/19, dsn=4.2.0, status=deferred (cannot update
>> mailbox /var/mail/xxxx for user xxxx. unable to lock for exclusive
>> access: Resource temporarily unavailable)
>>
>
> It means that mbox is locked by another process such as a client.
> The message is deferred ("status=deferred") and will try again later.
> This is one of the shortfalls of mbox format.
This is exactly what it appears to be, mbox locking problem. However
Frank says this host is a mailhub, which typically means no local
delivery, but delivery to a downstream mailbox server(s).
Frank, why are you delivering mail to a local mailbox on a "mailhub"?
If this isn't a "mailhub", but a mailbox server, switch to maildir to
avoid locking problems. Or, you could hack it up and only use maildir
for these problem accounts, requires virtual mailboxes, etc.
--
Stan
