Mail::Box::Mbox does not respect lock?

Hi,


I have a script doing slow mbox work on a directory with some MBoxes.
I have another script doing cleanup stuff in parallel.

Both are using Mail::Box.

Mail::Box creates the lock file "<mbox_name>.lock" as expected.

However when opening the same mbox with the another script it does not
respect the lock file and open the mailbox anyways.

Is this the expected behaviour? is this a bug? or just a
misconfiguration in my script?


Raul Dias