[Dovecot] Mailbox locking problem with iphone and POP3

[Bill Dunn - VCI Internet Services]

    I have a problem I can't seem to fix. I have dovecot configured to do 
POP3  with plain text authentication using a MySQL database. I am using 
Dovecot 1.0.7 with fcntl locking.

    My problem has been when an iPhone/iPod checks email. The iPhone/iPod 
doesn't disconnect with a TCP FIN packet and it leaves the mailbox in a 
locked state and prevents the user's desktop from checking email. I have 
tried changing the file locking method and other config file options without 
any luck.

    Oddly, I am using the last version of cucipop on another server with 
fcntl and lockf file locking and it doesn't have this problem.

    If someone could clue me in I'd be very grateful.

    Bill