Hi, we just installed postfix on our current mail server and are now
running to a few problems.

Most of our users use imap to access their mail (most not all).

However it seems that whenever they are connected by imap postfix is
unable to deliver to them. Every time I see the message:

    cannot access mailbox /var/mail/aUser for user aUser. unable to lock
    for exclusive access: Resource temporarily unavailable

Our current setup is postfix 1.1.10 running on UnixWare 7.0.1, running the
stock imapd with the system.

with the following locking settings:

    deliver_lock_attempts = 20
    deliver_lock_delay = 5s
    mailbox_delivery_lock = fcntl, dotlock
    stale_lock_time = 500s
    virtual_mailbox_lock = fcntl, dotlock

Thank you for any help/advice you may have.

-- 
IMPOSSIBLE:
    1. I wouldn't like it and when it happens I won't approve;
    2. I can't be bothered;
    3. God can't be bothered.
  Meaning three may perhaps be valid, but the others are 101% whaledreck.
                The Hipcrime Vocab by Chad C. Mulligan (John Brunner)
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