vmspool_manager is an Open Source program for managing your voicemail spool. Written in easy to read Perl. Tested with several versions of Asterisk. Automatically renumbers voicemail files after deleting old voicemails. Almost every option is controllable from the command line so it's easy to use as part of some automated nightly maintenance.

New features (as of July 18, 2007)
* Report mode is default - only says what _would_ have been done if active
* Set the number of days from the command line
* Option to operate on one mailbox instead of the whole queue

Get it, Install it, Run It
* Run it in report mode until you get the idea of what it will do
* Finally run it for real by adding the --activate flag