email modul with writing to mboxes (and locking) for python 2.4.*?

[Matej Cepl]

Is there somewhere support for the extension of email module, 
which would support writing to (and creating new) mbox folders 
(with all bells and whistles, like locking)? It seems to me that 
current (Python 2.4.*, I even tried email package 
4.0.2 from python.org email SIG) implementation is read-only, am
I right?

Thanks for any reply,

Matej Cepl