[Dovecot] file lock on 1.0 stable

Hi

I have the lock file back on 2 customer accounts. i am using mbox under /var/spool/mail/%u and of the 300 pop3 accounts i only have the odd random issue with the file locks.

some are 1 byte (containing 0) other correct in that they have a pid (average 26 bytes).

mbox & lock files owned by userUID.mail

Mark